Mac OS: mapping fps is around 5-10

Have significant FPS drop from 60 to 5 on maps.

Game screen record with that problem:
https://www.youtube.com/watch?v=SczxddYoO4o

MacBook Pro
Chip: Apple M1 Max
RAM: 32 GB

Game graphic settings:
All graphic low, vsync adaptive, tripple-buffering disabled.
Was trying to disable/enable different parts of graphic settings in different combinations, settings vsync off and capping foreground fps cap, etc..


This league is literally unplayable with that FPS.

Previous time on same macbook I played in Sentinel league, that was cwdt-build (that already can make fps drops by itself), but all was very smooth - from juiciest mapping with 5 deli orbs to uber-bosses.
But this leagu even simple pack of mobs on the map can make drop from 60 to 10 fps for a few seconds, and simple mechanics, like blight, can make game unplayable with 5 fps.

Hoping for some progress into a fix here, same issue with same specs. Would love to be a least close to what the previous league's performance was.

Yep

commented on another thread too

Since the 3.24 prep patches in Afflication, I've had terrible lag. Almost unplayable. Before that, the machine handled everything perfectly, even in 11k+ affliction wisp maps.

Would honestly love to go back to the pre-patch affliction league performance.

One observation which may help tracking down the issue:

Closed space/underground maps (like Excavation, Vaal Pyramid) run noticeably better than open space (like Jungle Valley, Tropical Island). FPS difference is at least 2x, its very apparent when going from open part of say Burial Chambers to underground passage of it, FPS immediately rises