When I first tried this map it was all working fine even with the max amount of buildings. There were still some frame drops but nothing unplayable, it occasionally freezed when multiple buildings got destroyed at the same time but that's to be expected. But now, the frame rate drops to around 1 to 4 frame rates when more than 5 houses or so have spawned. Any ideas what might be causing this ? I don't see any recent addons that I downloaded that could have caused this.

EDIT: I just tested it and disabled all my addons except this map and it works properly again, so there must be an addon that causes this issue.