Yeah so Ive played rome 2 a bit now and despite my PCs high specs I get bad fps drops(especially in big battles) all the time making the game a headache to play. This seems to happen regardless of graphics setting. When I run the in game benchmark I generally get as high as 70 fps and as low as 10fps. Like I set setting make no difference. Here's my specs.

Processor: Phenom II X4 840 (4CPUs)
Graphics:AMD Radeon HD 7970
Memory: 12GBs of ram

If you know a way to fix this please help. I really want to enjoy this game.