[GAMEPLAY] The game runs as a slideshow if Cho' gets bigger while in centered camera

I was playing as Cho, and when I made some kills and he got bigger, the game runs very slow, almost like a stop motion movie. The FPS says 60 and latency is fine, but it looks and feels slow either way. I use normally centered camera, so I think that might be the issue; I didn't test it with the normal camera view. Is this common? Here's my rig: