Gross stuttering and tearing whenever I pan around, game otherwise looks great

I'm not sure exactly how to describe this, but I generally get around 60fps, which I feel is plenty fine for an RTS game. The animations looks great and smooth when I'm sitting still, but as soon as I move my mouse and look around, I get a disgusting jittery, stuttering mess.

It still says I'm running at 60fps but it looks more like 10-15. It's beautiful to sit still and look at, but as soon as I try to move around, it's borderline unplayable. It legitimately is giving me a headache