Catastrophic performance issues in the new league

Every League since the engine change at the tail end of 3.21 performance has gotten worse and worse but now it is functionally unplayable. I have made every effort to remove potential issues on my end (ethernet connection, computer specs are significantly better than recommended, all settings turned down to minimum and sound turned off in settings (either fix your sound handling or provide a way to hard disable them that doesn't involve editing hidden files please)) and I have spent most of my league start trying to play with 1.5k ms and about half an fps. This issue is the result of some absurdist issue with specific tilesets. Many of the interior tilesets including juiced blighted maps and incursion display identical performance to previous leagues even in very high density with lots of actions and projectiles occurring but any outdoors tileset its a miracle for there to be less than 300 resting ms and 3 fps even when there are no enemies alive anywhere nearby and when there are 2 fps is rare.