I know, I should post this on the modject discord but,… I finally found the TRUE problem that was killing fps on my map.
Let me explain. I had set up a system that would allow the skyscrapers to have zombies int hem, and the zombies be able to move around. well, I used pallets to do this. and it turns out, I had 3 pallets where there should have been one (as int he pallet got duplicated 3 times) in every single one of my buildings. (the increased navigation mesh might also be a problem but meh)
SO yeah. Im going to fix this, also, Ima use this to update everyone on whats going on in my map. Even if nobody cares.
One more thing. Watch out for these guys, they might have loot by them. (when the map gets updated)
(they usually look better, and no, I didnt make them out of books.)