1. Clean up your disk by removing/uninstalling unnecessary files and programs.
2. Upgrade your RAM and use an SSD (Solid State Drive) instead of a regular hard drive.
3. Keep your drivers updated.
4. De-fragment your hard drive regularly.
5. Disable startup programs.
6. Use a trusted PC antivirus program.
7. Limit the number of tabs and windows you have open at once.
8. Install a PC optimization program such as CCleaner.
9. Adjust your power settings.
10. Schedule maintenance tasks such as disk cleanup, defragmentation, and virus scans.