This mod alters a lot of locations and adds atmospheric clutter. So mods that add new npcs will likely need compatiblity patches for the location affected by bcom. Any mod that edits location too obviously.BCOM is great mod series but also a bitch because of compatiblity issues.
with what?
Animated morrowind needs patch for both bcom and openmw which is annoying. Dura Grabol House Reclaimed. Imperials Go Home. Balmora Docks District. Sermons and Preachers. Just few i recall. Sometimes there is a patch sometimes there isn't.
Had to ditch it for openmwVR as it also hurts framerate in some areas.
BCOM hurts performance only on cans. Which areas?
I had framerate drop in Balmora with waterworks addon. In VR headset it makes picture jittery, usual sign when performance suffers.