iMac running slowly for the past three weeks
My late 2015 27" iMac running 10.14.5, 4 GHz i7, 32 GB RAM has been a pig for the last three weeks. The beachball is spinning and everything takes an age to open, every window lags, even key strokes take a while to catch up, and the last straw is that Tetris hangs up! Not good.
I know I have two virus checkers, as I installed Malwarebytes today trying to get rid of some junk. Funny thing is that Symantec claims I don't have an account.
Here is the EtreCheck Report: