High CPU usage is often caused by running irrelevant background applications or having malware or viruses in the system. First, if you have a low-end CPU, you should not worry about the high CPU usage when playing Roblox. However, if you have a decent CPU with a dedicated GPU, you should troubleshoot this issue as soon as possible, as your system might be affected by the malware.
1. Disable Background Apps
Since idle background applications consume a significant amount of CPU usage, it is recommended to start by Disabling the background applications from the task manager or Windows Settings to reduce the CPU consumption. To do so, follow the steps:
Windows 10 or below
Windows 11
Unfortunately, in Windows 11, you will have to use Group Policy Editor to disable the background apps, as there is no option in Windows to disable all the background apps directly from the Windows Settings. To do so, follow the steps:
2. Adjust your PC for the best Performance
Windows has many visual effects that use a significant amount of system resources. Even though they look very nice, they can also slow down the system or application performance. This is especially true if you have a low-end system. Therefore, configure your PC to produce the best performance by following the steps:
3. Update or Reinstall the GPU driver
If you have a low-end CPU with an integrated GPU, you need to make sure that the latest driver is installed in your system by updating or reinstalling the driver. However, if you have a dedicated GPU, you should perform a clean installation of the GPU driver to ensure the driver you have is not corrupted or outdated. When it comes to reinstalling the driver, we always recommend DDU (Display Driver Uninstaller). It is an application that helps remove the graphics driver without any files left behind. Follow the steps to reinstall the driver even if you already have the latest driver installed.
4. Add Roblox in Graphics Preferences Settings
Graphics preferences settings is used to configure the application to run with high performance. It is also used to select whether to use iGPU or dedicated GPU to run the application. Since you are facing high CPU usage, you can try adding Roblox to the graphics preferences settings. This will distribute an equal load to your CPU and GPU, which should automatically reduce CPU usage. To do so, follow the steps:
5. Check for malware scan
When applications consume high CPU usage, it is often due to malware or viruses injected by third-party or untrusted applications. If the issue persists after following all of the above methods, it is highly recommended to scan your computer using a third-party or built-in antivirus program. We recommend using the built-in Windows Defender to scan your system. Follow the steps to scan your computer:
6. Try using a Microsoft Store version
There is also a Microsoft store version of Roblox that is the same as the Roblox client version. When users encounter issues with a Roblox client version, we recommend installing a Microsoft Store Roblox version. To do so, simply follow the steps:
7. Reinstall Roblox
After following all the methods, if the CPU usage is still high, try reinstalling the Roblox because it is possible that the Roblox files become corrupted, causing high CPU usage. Therefore, try reinstalling Roblox to ensure there are no corrupted files in the Roblox folder. To reinstall the Roblox, follow the steps:
