iMac 2017 Very Slow, EtraCheck attached

I have a little collection of iMac drive scores and yours are about on nominals for the Fusion system in a 21.5-inch iMac. With those speeds, things should NOT feel slow. Likewise, you RAM was not stressed at the time of the test.

For some reason, Spotlight indexing was being piggy when you ran the test. Was the test run right after a restart or a major system upgrade?

Top Processes Snapshot by CPU:

Process (count) CPU (Source - Location)

mds_stores 19.08 % (Apple)

EtreCheckPro 16.08 % (Etresoft, Inc.)

WindowServer 5.54 % (Apple)

kernel_task 5.20 % (Apple)

Safari 2.00 % (Apple)

Top Processes Snapshot by Memory:

Process (count) RAM usage (Source - Location)

mds_stores 1.31 GB (Apple)

EtreCheckPro 739 MB (Etresoft, Inc.)

com.apple.WebKit.WebContent (5) 470 MB (Apple)

AMPLibraryAgent 188 MB (Apple)

WindowServer 94 MB (Apple)

If the latter, it can take hours to settle in as Spotlight has to reindex tens of thousands of new files. Through System Preferences/Settings you can limit what Spotlight tracks, often reducing the impact of indexing on performance. Example: If an app like Apple Mail offers decent search options, there is not reason to have Spotlight deal with it. You can deselect mail messages from System Prefs/Settings:

I would recommend that you download the free version of DriveDX and check both the SSD and hard disk portions of your Fusion Drive. If either report any errors that means that component is dying and causing your problem.

I reinstall Monterey before i upgraded to Mac OS Ventura!

I have the same 2017 imac with the same specs ,but in 27" screen.

My Imac running so fine after i have installing Mac OS Ventura on it!

Maybe i`m just lucky?

. It sounds like nothing else stands out, based on the EtraCheck report?

Thanks.

This may not have been at play when you did the test but can be a real ankle-bitter:

Diagnostics Information (past 7-30 days):

2022-11-01 17:25:36 photoanalysisd High CPU Use

For info on this issue, please see:

https://apple.stackexchange.com/questions/310594/what-is-photoanalysisd-and-why-is-it-using-77-of-my-cpu