Game freezes or crashes when opening windows

I’m running latest update of bigSur on a mid-2015 27" iMac with AMD graphics.

I have no issues getting 60FPS when following the awesome Mac guide located in this forum but anytime I open my map, click on the mission table, or open a flight path I have a tendency to freeze up and too often crash all together. This does not seem to be an issue in the older zones, and happens mainly in Oribos and in the covenant HQs. I can still be in the in-game voice chat while my screen flickers and beach balls spin, sometimes for a minute or longer.

I understand that Apple’s “current” drivers are crashing, and this may be a result of that. I was wondering if anyone else had this issue and if anyone had any insight if there was any setting that could be changed to help fix the problem.

Update:

Cranking down spell density mostly resolved this issue. No idea how spell density would have any effect on in-game windows but apparently it does.