Hi Matthew234,
Welcome to Microsoft Community. I'm here to help. Let's try troubleshooting your Windows 10 performance issue. But first, I'll need additional information in order to further isolate your concern. What is your Windows 10 build and version? What is the make and the model of your device? Is this happening to other users on your PC?
In the meantime, please try the following suggestions:
- Perform a Clean boot to check if the issue persist.
- Run this tool. This will optimize Windows speed and performance.
- Check this article. This will help improve PC performance in Windows 10.
- Use the default or optimal BIOS settings.
- Update your BIOS firmware to the latest version. Go to the manufacturer's support site for further assistance.
Keep us posted.