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dazzer21-2

macrumors 6502
Original poster
Dec 3, 2005
458
511
Imac 17,1 running Catalina 10.15.7. Working fine until Safari (15.6.1) is opened. Then it's brought to its knees. 20 secs or so, it operates at full speed, then for a minute or so, I can move the mouse across the screen and it will take 10 seconds for the cursor to catch up. Cleared all caches, followed numerous how-tos, but it persists. Is this a known issue, can I delete/re-install Safari? At my wits' end over this!
 
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