Up until last night, I have had no trouble running this game. Then all of a sudden it started acting up. It will be running fine, then for a split second or two it will get all choppy, like my frame rate dives down very low then jumps back up to 30.

I can't see it being my computer as I just build it 8 months ago and I'm currently maxing out games like Starcraft II and Dark Souls. Even FFXIV wasn't doing this.

What could be causing this? It's making my experience miserable.