slow
Everything has spinning beachball before coming up
iMac 21.5″, macOS 10.13
Question marked as
Download and run Etrecheck. Be sure to give it Full Disk access before running.
Copy and paste the results into your reply. Etrecheck is a diagnostic tool that was developed by one of the most respected users here in the ASC and recommended by Apple Support to provide a snapshot of the system and help identify the more obvious culprits that can adversely affect a Mac's performance.
Copy the report
and use the Additional Text button to paste the report in your reply.
Then we can evaluate the report to see if we can determine the cause of the problem.