1. Uninstall unused programs.
2. Run disk clean-up and disk defragmenter to clear up your disk space.
3. Turn off unnecessary services and startup programs.
4. Update your operating system and software regularly.
5. Close unused programs and tabs in your browser.
6. Scan for viruses, spyware, and malware periodically.
7. Adjust your virtual memory settings.
8. Check your hard drive for errors.
9. Upgrade your RAM and storage.
10. Use a lighter version of the operating system.