Start with this if IntelMac...
Safe Boot, (holding Shift key down at startup), does the problem occur in Safe Mode? Could take 10 minutes or more.
Safe mode attempts to repair Disks & clears lots of caches & loads safe Drivers, & prevents loading of 3rd party extensions, so if Safe Mode works try again in regular boot.
Uninstall CleanMyMac per their directions , then run etrecheck again to see what chaff it left...
On CMM…
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If still a problem we need to figure out the iCloud problem, (bird process)..
"bird" process is taking over - Apple Community