So literally 2 days ago I built a new custom computer so that I was able to comfortably play Arma 3. The night I got the computer I installed arma 3 and it was running AMAZING on my 32in LED TV with atleast 30 or more frames on high/very high. The next morning I had a bunch of windows updates, and I also had to reapply some more thermal paste to my processor. I tried playing arma 3 later that day and the frames were horrible. They stay at 5-30 and constantly jump back and forth. These frames stayed the same whether I was on Low, Standard, High, Very High, or Ultra. I system restored to see if it was the windows updates but it wasnt. I also tried playing on a small 19in screen and the frames were exactlly the same. It doesn't matter if I'm in multi, single, or even the editor with nothing spawned. Along with these frames is also constant stuttering of the gameplay every couple seconds. I know it's not my computer because I can play shogun 2 on high/ultra with no problem. Anyone have any suggestions? My system specs are:
i7-4770K 3.5 GHz
GTX 770
16 GB RAM
750W Power Supply