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timpatka Author

Level 1

8 points

activity monitor

how interpret activity monitor to determine why iMac 2017 is very slow?

iMac

Posted on Nov 15, 2022 1:03 PM

Top-ranking reply

John Galt

Level 10

147,252 points

Posted on Nov 15, 2022 4:15 PM

One method I use is to select the CPU tab and sort by %CPU in descending order.

Activity Monitor User Guide for Mac - Apple Support

Another fundamental troubleshooting technique is to use "Safe Mode": How to use safe mode on your Mac - Apple Support. A Mac is not pleasant to use in that mode for very long, but it should not be objectionably slow.

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