As he was getting good FPS in BF3 previously, adding a cooler to his CPU is not going to give him the fps back. I would go with Wazza on this and ask if the OP has recently installed any programs? Check and see what processes are running and if any of them are eating into the CPU. If need be, google every process to make sure you are virus free.
If all good there, run Memtest86+. It will take a while but is worth making sure your ram is good. Report back if these help/don't help and we can go a bit deeper![]()
Ran HD Tune and surprisingly nothing came up on the drive I am recording to, my boot and apps drive is a Samsung 830 256GB SSD. No out of the ordinary processes in task manager, ran a virus scan and nothing came up. This is a bit strange to be honest. I also need to check there isn't an option in BF3 which limits the FPS or something, In fraps it is set to record at 60 FPS.