Razer Cortex enhances your system's performance for higher FPS and quicker loading times, allowing you to play at your best. However, you might face Razer Cortex high CPU usage on Windows 11/10. This article addresses the causes and solutions for this issue.

Razer Cortex is seen as an excellent game booster. Nevertheless, some users have observed that it frequently consumes a significant amount of CPU power, even when it's not active. The primary reasons behind the "Razer Cortex high CPU usage" problem are as follows:

• Insufficient system memory
• Background processes related to Razer Cortex
• Incorrect configurations
• Faulty files in Razer Cortex’s recent update

Now, proceed to read and attempt the following methods to resolve the high CPU issue.

Solution 1. Use MiniTool System Booster

When encountering high CPU usage with the game optimizer Razer Cortex, the optimal solution is to depend on a professional third-party PC optimization tool like MiniTool System Booster instead of manual troubleshooting.

This free software can enhance your machine in various ways, including clearing internet traces, optimizing the hard drive through defragmentation, and removing junk files. It features a function named Deepclean that helps organize your browsers, system cache, invalid registry entries, RAM space, etc., saving a considerable amount of time and effort.

Let's now see how to address Razer Cortex consuming 100% CPU with MiniTool System Booster.

Step 1. After installing this tool on your device, open it from your Desktop.

Step 2. Perform a Deep Clean

1. Expand the Performance Home menu and pick Deepclean from the dropdown menu.

2. Click on START CLEAN to execute 7 cleanup tasks. It's recommended to carry out Internet Cleanup, Windows Cleanup, and Memory Mechanic.

For the remaining tasks, you can perform them as needed or skip the unnecessary ones.

Step 3. End Razer Cortex-related processes

1. Navigate to Toolbox > select Process Scanner under System Management.

This feature can be used to terminate Razer Cortex-related processes running in the background, which would otherwise consume CPU resources.

2. After scanning, press Scan now > locate Razer-Cortex-related background processes > click on Terminate Process next to them.

Step 3. Remove Razer Cortex from startup

1. On the Toolbox page, select Startup Optimizer under System Management.

2. Scroll down to find Razer Cortex> tap Off to remove it if it starts automatically.

Solution 2. Reset Lighting Profiles

Lighting is a feature that lets you control LED-powered devices like keyboards, mice, and other illuminated accessories. During gaming, it creates a dazzling light show reacting to in-game events, enhancing your gaming experience.

However, it might also lead to excessive CPU usage on your computer. Some users who faced high background CPU usage on Razer Cortex successfully resolved it by resetting lighting profiles. You can try this approach and see if it works.

Solution 3. Disable Boosting Feature

Razer Cortex includes a feature – Auto Boost – that automatically optimizes your PC performance. However, in situations where system resources are already strained or when certain background processes are running, it could cause a Razer Cortex high CPU issue. You may need to disable it:

Step 1. Launch Razer Cortex > go to Game Booster > Boost.

Step 2. Turn off the Auto-Boot button.

Step 3. Alternatively, scroll down to find Specials > disable Enable CPU Core.

Solution 4. Reallocate CPU Resources

The method you can try is to redistribute and limit CPU resources for Razer Cortex. Here's how to do that:

Step 1. Right-click on the taskbar and select Task Manager.

Step 2. In the Details tab, right-click on Razer Cortex > choose Set affinity > decide which CPUs are allowed to run it > click on OK to save.

Step 3. Right-click on Razer Cortex again > select Set priority > set the priority to Below normal or Low.

Solution 5. Roll Back to the Previous Version

Many users reported that updating this app resulted in the Razer Cortex high CPU usage issue. It also caused dramatically low FPS and the worst gaming experience. Try reverting to the older version:

Step 1. Open Control Panel through Windows Search.

Step 2. Go to Programs > Uninstall a program > find Razer Cortex > right-click on it > select Uninstall. Then check and delete any leftovers of Razer Cortex.

Step 3. Visit the Uptodown site which contains multiple versions of Razer Cortex and then download and install the one you need.

After reinstalling, check if it still consumes so much of system resources in Task Manager.

Solution 6. Reinstall Razer Cortex

The Razer Cortex high CPU problem could be due to corrupted installation files or configurations. Reinstalling it might be a good idea:

Step 1. Uninstall the software by following the first two steps of Solution 5.

Step 2. Then visit the official Razer Cortex website to download the latest version of the Razer Cortex installer.

Step 3. Launch the downloaded installer and follow the onscreen instructions to complete the installation.

Step 4. Once the installation finishes, restart your computer and check if the resource-hogging issue persists.

Conclusion

In this article, we demonstrate how to resolve the Razer Cortex high CPU usage issue with both third-party tools and targeted solutions. If you are less familiar with complex system settings, MiniTool System Booster is ideal for you. This program features a user-friendly interface and quick system diagnosis.

Do you have any suggestions or issues with our product? If yes, please feel free to contact us via . Our support team is always ready to assist you.

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