I just got borderlands 2 and tried it out and noticed that i cannot get stable 60FPS on close to high settings which seems weird for my rig. I have a GTX 980 that i havent overclocked and a 4690K not overclocked. Im running on a 2560x1440 and even with some settings on medium in some fights scenes and seemingly out of nowhere i drop to around 40fps. Im looking at MSI Afterburner and it says the GPU usage is staying around 70 percent. whats the problem?