Frame skipping every few seconds

[Jackftw 310]

Hey guy's, I'm posting on here because I can't seem to find any help anywhere else. I've been playing the game for a few months with no problems, but here recently my game just won't stop skipping frames every few seconds. My rig is perfectly capable of running the game, hell, when I'm not skipping frames my FPS is at around 70-90.

If anyone know's how to help let me know, it's honestly pretty game breaking.