Your Mac is slow
Simple fixes before you call.
- Save your work and restart the Mac.
- Close apps and browser tabs you are not using.
- Install updates. See Update macOS.
- Check free space. See Your Mac is out of space.
- Open Activity Monitor from the Utilities folder in Applications. Look for a program using a lot of processor or memory, and quit it.
Good to know
Skip cleaner and booster apps. They rarely help, and some are harmful.