I have no clue what happened, was playing for like 2 hours fine not had any FPS issues in the past, and then went to the farm and it dropped right down to 20 fps; so decided to restart destiny, then my computer, and then took the pc apart and cleaned all out and put back together. which made no difference, I have no clue what to do now. it doesnt matter whether im running at ultra or low i have the same FPS, please can someone help me