- Clean up your Desktop
The fewer the icons on your Desktop, the less time it will take your Mac to display Finder. Those milliseconds add up.
- Invest in more RAM
Check out crucial.com to see if your Mac is eligible to add RAM, often for $100 or less.
- Free up space on your hard drive
Use “Get Info” to see how much available space is left on your drive. If less than 15%, delete unused files to speed up your Mac.