Ok so i recently got back into the realm of pc gaming. and i was playing some battlefield 3 on high 1920x1080. i was getting good frames not sure how much but it never looked bad. and i noticed my CPU usage was around 82% the game and it went all the way up to 93% when it was a big part of the map with explosions and never below 75%. if there is some bottleneck of some sort could i fix it by getting a Cooler Master Hyper 212 heat sink and overclocking my CPU. currently running a AMD Fx-4100 stock with a AMD 7850 also stock. If overclocking is the way to go which programs would be good? Any help is appreciated.