How to fix macOS Ventura High CPU Usage (2024)

macOS is one of the smoothest and fastest operating systems developed by Apple. It has many advanced yet handier features that support a high level of multitasking. However, one issue we consistently face with macOS is the high CPU usage, especially in macOS Ventura and Monterey. Many macOS users reported high CPU issues after Ventura Update.

Notably, this mainly happens when you upgrade your macOS from one version to another. There could be several reasons for the high CPU resource usage issue. Fortunately, we have found some workarounds to fix the issue. This article discusses how to fix the macOS Ventura high CPU usage problem.

How To Fix macOS Ventura High CPU Usage

Fix mds and mds_stores High CPU Usage

Spotlight Search is one of the most useful features of the Mac. It lets you search for things quickly on your computer in seconds. The Spotlight feature is known for its lightning-fast searching speed. And interestingly, the mds_stores process helps Spotlight Search on macOS Ventura work faster. Yes, it is related to the Spotlight feature. It’s a process that automatically starts indexing all the files and applications present on your SSD or external storage.

How to fix macOS Ventura High CPU Usage (1)

mds and mds_stores High CPU Usage

When you restart your Mac or update it to the newer version, it starts to index all the files and other data on your Mac automatically. In addition, it keeps indexing the data in the background, which sometimes slows your Mac. Due to this, the mds_stores process could be the culprit for Mac’s high CPU. Here are some ways to fix the issue.

1. Delete Junk files for a faster Spotlight Indexing

When you use your Mac for a long time, it can become very cluttered with Junk files and folders. The junk files on your Mac can be a result of many different things, including logging and caching activities. When you have a lot of junk files on your Mac, it can slow down the Spotlight Indexing and make high CPU usage.

When we found many junk and unused files with Cleanup Software, it made us realize just how many minutes worth! The more file and folder you have in your system, the longer it will take for Spotlight indexing.

How to fix macOS Ventura High CPU Usage (2)

CleanMyMac on new macOS Ventura

The indexing process can take time, so it's always best to remove any unneeded files before beginning. There are many cleaning software for macOS, we recommend CleanMyMac because it's quick and simple to use. Just one click will clean all your junk files - automatically! The app is free to download and try, but if you want the full experience of cleaning your computer with ease then purchase a subscription.

Free Trial Download the newest CleanMyMac now

2. Reduce Spotlight Indexing Data

One of the first ways to fix the macOS high CPU issue is to reduce directories from the Spotlight Index. Deleting some files from the Spotlight index can resolve the issue. Follow the steps to reduce your Spotlight indexing data.

How to fix macOS Ventura High CPU Usage (3)

Reduce Spotlight Indexing Data

Step 1. Click on the Apple logo and move to the System Settings section.

Step 2. Click on the Siri & Spotlight option.

Step 3. There you will find two sections: Search Results and Privacy. First, head to the Search Results section and uncheck the boxes whose search results you don’t want to see in Spotlight.

Step 4. Now, head to the Privacy section, and click on the Plus (+) icon to add locations you don’t want Spotlight to search from.

3. Disable Spotlight Search

One of the easiest ways to get rid of this issue is to disable the Spotlight feature from the roots. You can disable the Spotlight feature entirely with the Terminal app. You can follow the steps to disable the Spotlight feature.

How to fix macOS Ventura High CPU Usage (4)

Disable Spotlight Search in macOS Ventura

Step 1. Open the Terminal app.

Step 2. Execute the mentioned command in the Terminal app: sudo mdutil – a -i off

Step 3. You may now see a prompt asking for your Admin Password. Enter your password to let the Terminal app disable the Spotlight feature.

4. Update Your macOS 13 Ventura

Another way to fix mds_stores high CPU issue on Mac is to update your macOS. It is possible that you are facing this issue because of a bug in your current Mac version. So, search for new updates and update your macOS.

To update your macOS, click on the Apple icon and head to the About This System Tab. Now, move to the Overview section, and click on Software Update. Your PC will now restart to search for new updates. After updating the PC, you can check whether the issue is fixed.

Fix kernel_task

One process you will always find running in the Activity Monitor app is the ‘kernel_task.’ You will also observe that it consumes significant CPU resources. The kernel_task task is an integral part of the Mac operating system that helps it run smoothly and faster. It is a group of small functions responsible for performing various tasks, from reading and writing to sharing, sending, and receiving data over the network.

Suppose you see this task consuming a lot of your CPU resources. There is a possibility that the ‘kernel_task’ task is causing the issue. Notably, we can’t stop the ‘kernel_task’ task. Yet, we can perform some other steps to reduce CPU usage.

1. Check kernel_task with Activity Monitor

First, you need to check CPU usage with the help of the Activity Monitor app. You can follow the mentioned steps to check CPU usage with the Activity Monitor app.

Step 1. Open Spotlight and type Activity Monitor. Click on the Activity Monitor.

Step 2. On the Activity Monitor app, click on the %CPU to sort processes based on CPU usage resources. You will see kernel_task on the top along with mds_stores.

Step 3. Click on the kernel_task; below you will see a graph with additional information. You can see the process associated with the kernel_task process and CPU usage.

2. Reset SMC on Mac

Resetting System Management Controller (SMC) is also one of the ways to fix the kernel_task high CPU usage on Mac. You can easily reset SCM in a few clicks but not on M1 Macs. This is because M1 Macs don't come with an SMC. Besides M1 Macs, you can easily reset SMC on Intel Macs. Follow the steps to reset SMC on Intel Macs, Mac Pro, or Mac Mini.

Reset SMC iMac, Mac Mini:
Step 1. First of all, Shut Down your Mac.
Step 2. Then, Remove the power cord from your Mac.
Step 3. Wait for at least 15 seconds, then Attach the power cord again.
Step 4. Now, wait for at least 5 seconds, then turn on the computer.

Reset SMC MacBook Air, Macbook Pro:
Step 1. Shut Down your MacBook.
Step 2. Then, Unplug the power.
Step 3. Press and hold the Right Shift, leftCtrl and Option (Alt) keys.
Step 4. Keep all Key then press Power button (10 seconds).

3. Check Your Mac CPU Temperature

Sometimes kernel_task help manage the CPU temperature. You need to check your CPU temperature to prevent the kernel_task process from using high resources. This way, you can ensure that your CPU isn’t causing the issue. Follow the steps to check your CPU temperature with the Terminal app.

How to fix macOS Ventura High CPU Usage (5)

Check Your Mac CPU Temperature

Step 1. Open the Terminal app.

Step 2. Copy and paste the mentioned command in the Terminal app: sudo powermetrics --samplers smc |grep -i "CPU die temperature"

Step 3. You will now see your CPU temperature

And these are the three ways to fix macOS Ventura high CPU usage issue. High CPU usage problem are common in macOS Ventura and macOS Monterey. Some users faced the issue due to background applications. Some encountered the problem due to the Spotlight feature. However, the reason could be different in your case. But we assure you these above-mentioned methods can really fix Mac's high CPU usage.

How to fix macOS Ventura High CPU Usage (2024)


How do I fix high CPU usage on my Mac? ›

How to reduce CPU usage
  1. Update your Mac. Keeping your Mac up-to-date is the surest way to resolve multiple issues, including high CPU usage on Mac. ...
  2. Check your top CPU consumers. ...
  3. Reset your SMC. ...
  4. Remove unnecessary login items. ...
  5. Declutter your Desktop. ...
  6. Free up RAM.
Mar 1, 2022

How to fix kernel_task high CPU usage on Mac? ›

There are several ways to fix the kernel_task issue on Big Sur.
  1. Antivirus Software. ...
  2. Reset Your Mac. ...
  3. Reset the Mac's SMC. ...
  4. Reset NVRAM. ...
  5. Start the Computer in Safe Mode. ...
  6. Close All Apps. ...
  7. Update Zoom.
  8. Reinstall Zoom.
Sep 24, 2022

How to disable kernel_task in Mac? ›

While you can't quit the kernel_task process, restarting your Mac essentially does just that, since all the tasks would start anew when your system reloads. Quit useless processes. To do so, launch Activity Monitor, select any useless process, click the Stop icon, and then select Quit or Force Quit.

What is kernel_task in Mac OS? ›

What is kernel_task? kernel_task manages the temperature of your CPU which limits its resources to applications that is using it intensively. The CPU usage will decrease as soon as kernel_task reduces its activity.

Why is my CPU at 100% usage all the time? ›

If the CPU usage is around 100%, this means that your computer is trying to do more work than it has the capacity for. This is usually OK, but it means that programs may slow down a little. Computers tend to use close to 100% of the CPU when they are doing computationally-intensive things like running games.

How do I fix my CPU usage at 100%? ›

This can happen for several different reasons, which is why it's important to learn how to fix high CPU usage in Windows 11.
  1. Reboot Your PC. Before trying anything else, try restarting your PC. ...
  2. End or Restart Processes. ...
  3. Update Drivers. ...
  4. Scan for malware. ...
  5. Power Options. ...
  6. Find Specific Guidance Online. ...
  7. Reinstalling Windows.

Do I need kernel_task on Mac? ›

The kernel_task process is at the core of macOS, and it includes a variety of low-level functions that allow the computer to work. One of its primary functions is ensuring your Mac doesn't overheat.

Why does my Mac keep kernel panic? ›

If your Mac restarts unexpectedly, an error known as a kernel panic occurred, and a message indicates that your computer restarted because of a problem. The most likely cause is faulty software. A kernel panic can also be caused by damaged or incompatible hardware, including external devices attached to your Mac.

Why is my kernel_task high CPU when connected to monitor Mac? ›

The high CPU utilization is a symptom because the CPU is slowed down by the kernel_task due to high temperatures. The external monitor causes to increase the heat. If you manage to keep the temperature low e.g. by cleaning the dusted fans and vents, it will disappear.

How do I check my Mac for malware? ›

Check Activity Monitor for Mac malware

If you suspect your Mac has been infected with a virus, one of the best places to look is Activity Monitor. Here, you'll be able to see background processes and apps that are running – including malware.

How to clear cache on Mac? ›

How to clear the cache on your Mac using shortcuts
  1. Open the Finder window and press shift + command + G.
  2. Type ~/Library/Caches into the search box and click Go.
  3. Press command + A to select all folders, or manually select individual items.
  4. Press and hold command + delete to clear the selected files from your Mac cache.
Dec 9, 2022

How do I turn off high performance mode Mac? ›

Choose Apple menu  > System Settings, then click Battery. Choose High Power Mode from the “On battery” or the “On power adapter” pop-up menu under Energy Mode.

What is a CPU panic on Mac? ›

If your Mac restarts unexpectedly, an error known as a kernel panic occurred, and a message indicates that your computer restarted because of a problem. The most likely cause is faulty software. A kernel panic can also be caused by damaged or incompatible hardware, including external devices attached to your Mac.

How do I check CPU activity on Mac? ›

View CPU activity in Activity Monitor on Mac
  1. To view processor activity over time, click CPU (or use the Touch Bar). ...
  2. To view current processor activity, choose Window > CPU Usage.
  3. To view recent processor activity, choose Window > CPU History.

How do I check my CPU activity on a Mac? ›

View CPU activity on your Mac in the Activity Monitor window. To enable viewing in the Dock, choose View > Dock Icon, then select the Show CPU option you want to view. In the Activity Monitor app on your Mac, do any of the following: To view processor activity over time, click CPU (or use the Touch Bar).

Is 90% CPU usage okay? ›

If you are currently not running any additional programs, your CPU usage should be anywhere between 1% and 10% just through Windows processes alone. Anything higher than that on an idle PC means that something might be wrong.

Is 90% CPU usage normal? ›

Not all high CPU usage is problematic. If your CPU use temporarily spikes to 90% or 100%, that's normal if you're doing intensive tasks like high-end gaming or graphic design. So long as your CPU calms down after you're done, there's nothing to worry about.

Why is my CPU maxing out? ›

A longer count means the system is busy or overloaded. High physical memory usage is often a consequence of using too many demanding apps, but can also be the result of a bug in a process that would normally be far less resource-intensive.

How do I clear CPU usage? ›

Disable extraneous processes. Press "Ctrl-Alt-Del" and click "Start Task Manager" to bring up your computer's Task Manager. Scroll down the list and keep an eye out for any processes you don't recognize. Next, click on any processes you wish to disable, then click the "End Process" button.

How do I lower CPU processes? ›

Guidelines to reduce CPU meter level:
  1. Optimize Live's Audio and CPU Preferences.
  2. Optimize Graphics card settings.
  3. Optimize CPU-Intensive Devices.
  4. Optimize Audio file settings.
  5. Close Plug-In Device Windows.
  6. Optimize system resources.
  7. Reduce CPU throttling.
  8. Upgrade your computer components.

Why is my CPU usage at 70%? ›

If the System Idle Process is high, around 70% - 90%, in the CPU column of the Task Manager. And, you're not running any programs or perhaps just a few. It is normal for it to be high because the processor is not doing much at the moment.

What should I not delete from Mac? ›

~/Library/Mobile Documents

This is the actual location of the iCloud folder. Documents, application preference files, iOS app data, and more live in this folder. You should not move, rename, or delete it. It's also a folder that takes up a lot of disk space if you use iCloud.

Should you turn off Mac firewall? ›

Chances are that your computer is behind the firewall that's part of your router, so having macOS's firewall turned off makes it easier to set up connections with other Apple devices. But if you use a laptop and hop onto untrusted networks frequently, you should enable the firewall.

How do I Unbrick my Mac? ›

How to revive a bricked Mac
  1. If the processor is an Apple silicon -- such as the M1 chip -- then turn on your Mac and click and hold on the Power button. ...
  2. For Intel-powered Macs, turn your computer on, then press and hold on the Command and R buttons until you see the Apple logo.
Jun 17, 2022

What does a kernel panic look like Mac? ›

When your Mac keeps restarting or unexpectedly tells you that you have to restart because of a problem, that's a kernel panic. A kernel panic occurs when your Mac runs into a problem that is so serious it is unable to continue running.

What does a kernel panic look like? ›

Kernel panic in Windows

In Windows, kernel panic is typically characterized by the appearance of a BSOD error message stating that the system needs a restart. The error is usually caused by malfunctioning hardware or poorly optimized device drivers.

How do you fix an Overscaling monitor on a Mac? ›

Check settings on your Mac
  1. Choose Apple menu  > System Settings (or System Preferences).
  2. Click Displays.
  3. Make sure your TV is selected in Display Settings, then adjust picture size using the Underscan setting, if available for your TV.
Jan 27, 2023

Can Clean My Mac remove malware? ›

The Malware Removal module performs the finest search for unwanted “-ware” on your Mac and is CleanMyMac's foremost weapon against viruses, miners, loggers, and many other dangers. Its database of malware is updated regularly and no less than once a week.

Has my Mac been hacked? ›

One way to tell if you have been hacked is to check for strange activity on the Activity Monitor. You should check network activity specifically. If you spot excessive network activity, a hacker may likely have gained access to your Mac. Another way to check is to go and see the Sharing part in System Preferences.

Should I clear all cache on Mac? ›

There are three main reasons why you should clear cache on Mac: troubleshooting, privacy, and freeing up storage space. If your Mac is running too slowly or there's some app that's acting strange, delete the old app and system caches to fix the issue.

Does clean my Mac clear cache? ›

MacPaw's CleanMyMac X will clear your Safari cache (as well as a bunch of other browser-related information). It's free to download, and includes a Privacy module that gives you the power to wipe all unwanted stored information like browsing history, cookies, and more.

What happens if you delete cache Mac? ›

Clearing your Mac's cached data deletes the temporary media files, such as images and text files, that it gathers from sites you visit. It's important to clear your cache periodically to help protect your identity and make your computer's applications run more efficiently.

Is it OK to use high performance mode? ›

As long as you plan on buying a device with the right specifications for your use, the high-performance mode is just a novelty to have, and its absence shouldn't bother you.

How do I unlock high performance mode? ›

Configure Power Management options for high performance
  1. Press the Windows + R keys to open the Run dialog box.
  2. Type in the following text, and then press Enter. powercfg.cpl.
  3. In the Power Options window, under Select a power plan, choose High Performance. ...
  4. Click Save changes or click OK.
Mar 16, 2022

How do I change my Mac performance settings? ›

Click the System Preferences Icon located on your Dock:
  1. Open System Preferences. Select Energy Saver from the System Preferences Window:
  2. Select Energy Saver. ...
  3. Disable Automatic Graphic Switching. ...
  4. Select Higher Performance.

Is it safe to enable kernel extensions on Mac? ›

Important: Kexts are no longer recommended for macOS. Kexts risk the integrity and reliability of the operating system, and Apple recommends users select solutions that don't require extending the kernel.

How do I disable kernel extensions Mac? ›

On macOS, you can use “Extensions System Preferences” to enable and disable Apple and third-party extensions for the device. To change these preferences, go to “Apple Menu,” then “System Preferences,' and finally, click “Extensions.”

How do I fix a stuck boot loop on my Mac? ›

If your Mac is stuck on this screen or keeps restarting
  1. Press and hold the power button on your Mac for up to 10 seconds, until your Mac turns off. ...
  2. Turn your Mac back on.
  3. If the issue persists, press and hold the power button until your Mac turns off. ...
  4. Turn your Mac back on.
Nov 14, 2022

What should you not do on a Mac? ›

Do not place your MacBook on a pillow or other soft material when it's powered on, as the material can block the airflow vents (in particular, the rear vents) and cause the computer to overheat. Never place anything over your keyboard when operating in closed-lid (clamshell) mode.

Is it worth turning on firewall on Mac? ›

A firewall can protect your Mac from unwanted contact initiated by other computers when you're connected to the internet or a network. However, your Mac can still allow access through the firewall for some services and apps.

Can macOS be hacked? ›

The truth is that Macs can be hacked, and they are not immune to malware threats. One of the biggest reasons why Windows PCs are more frequently targeted than MacBooks is market share. As of 2022, Windows had a global market share of 76% in the operating systems for the desktop market, compared to about 15% for macOS.

What is a macOS kernel extension? ›

What Are Kernel Extensions? Kernel extensions (or kexts) let developers load code directly into the macOS kernel. By giving developers these kernel privileges, kexts can help those developers create some very powerful apps.

What are kernel extensions used for? ›

Kernel extensions sometimes referred to as kexts, enable developers to load code dynamically into the macOS kernel. This provides access to internal kernel interfaces, allowing complex apps to function properly.

How do I check my kernel extensions Mac? ›

Grant access to the kernel extension
  1. Open Apple System Preferences.
  2. Open Security & Privacy.
  3. Select the General tab.
  4. If general settings are locked: Click the lock icon in the lower-left corner. Enter your device password. Click Unlock.
  5. Click Allow next to kernel extension that requires approval.
Nov 15, 2021

Is Bootloop a serious problem? ›

Phones with "boot loop" problems will attempt to restart endlessly, often until the battery is completely drained. In the event of such a problem, there are a few things you can do, but do note that the "boot loop" is often a fatal condition for a device when common remedies fail to resolve it.

How do I fix Bootloop without factory reset? ›

Here's the guide:
  1. Turning off the phone, press Volume down and Power keys simultaneously for a few seconds to enter Custom Recovery mode.
  2. Choose Advanced option in the Custom Recovery menu.
  3. Select "Wipe Delvik Cache". ...
  4. Go to "Mounts and Storage" and select "format/cache" option. ...
  5. Reboot your device.

What causes infinite boot loop? ›

The Windows boot loop problem is often the result of a device driver, a bad system component or hardware such as the hard disk that causes a Windows system to spontaneously reboot in the middle of the boot process. The result is a machine that can never boot completely and is stuck in a reboot loop.

How do I turn off Overscaling? ›

How to Fix Desktop Overscaling and Overscanning
  1. Disconnect and reconnect the HDMI cable. ...
  2. Adjust your TV's display settings. ...
  3. Change the Windows 10 screen resolution. ...
  4. Use Windows 10 display scaling. ...
  5. Manually adjust your monitor's display settings. ...
  6. Update Windows 10. ...
  7. Update your drivers. ...
  8. Use AMD's Radeon Software settings.
Sep 7, 2022

Should I have overscan on or off? ›

Is overscan a huge deal? For most people, no. Turning it off will improve the image slightly, with a little better detail, and maybe a little less noise. If you're using your TV as a computer monitor, overscan is a very big deal.

How do I reset my Mac monitor settings? ›

Reset the resolution in safe mode
  1. Start up your Mac in safe mode. ...
  2. After your Mac starts up, choose Apple menu > System Settings, then click Displays in the sidebar. ...
  3. Click Default on the right to use the best resolution for your display.
  4. Restart your Mac normally.

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