Reproduction Steps: Fight Kutum or Ahib Griffon Observe black cloud effect around Kutum's base, or when griffon stomps. Observe FPS drop (may vary on PC). My computer is not a monster, but it's a last-gen Intel Core i7 with a GTX 1060 6GB playing on High settings. I don't know when it started since I haven't fought Kutum in a while, but I used to be able to play just fine, finishing the entire Kutum fight at a solid 60 fps. Now there's a very dense black smoke or cloud when fighting certain enemies, and it tanks my frame rate and I get fairly bad input lag. I've tried lowering my settings to Medium, and it's still there. When I back away from the cloud some, framerate and computer response recovers, similar to when the game camera is close to a fluffy horse mane.