unity takes 1-2 minutes to edit something in the editor, for more computer-nerdy guys (with respect) the disk on my computer is running 100% and the memory at about 30% and my CPU about 20-0%, my disk memory is not full. unity editor is taking the most of everything.
If you have Unity Hub installed, try to close it while running the editor. Kill all not essential processes related to the Hub in task manager. Check in settings if you run local cache server and disable it if yes. Set quality settings for stand alone player to lowest possible in quality settings.
Works for me. It worked for me, I uninstalled the Hub and no longer had problems with computer slowdowns.