Hey guys so it one pretty wierd thing that is going on right now see for example if i play Siege of Shanghai on Battlefield 4 and im on one part of the map and i get about 55 fps on ultra setting and then i look up in the sky the fps just go rising up to like 85 fps can someone tell me how to fix this so i just have a good fps all the time because its kind of annoying thanks in enhance
btw i dont have V-sync turned on SPECS:
CPU: i53570k
GPU: ASUS GTX 970 STRIX
MOBO: ASUS P8z77V LX
Power supply: Corsair TX 650

CPU: i53570k
GPU: ASUS GTX 970 STRIX
MOBO: ASUS P8z77V LX
Power supply: Corsair TX 650