Here are the top three things you can do to improve your computer’s performance
Upgrade your hardware. If your computer is old or outdated, it may be time to upgrade some of the hardware, such as the RAM or hard drive. This can give your computer a significant performance boost.
Defragment your hard drive. Over time, the files on your hard drive can become fragmented, which can slow down your computer. You can defragment your hard drive using a tool that comes with your operating system.
Use a disk cleaner. A disk cleaner can help to remove temporary files and other unnecessary files from your computer, which can free up space and improve performance.