Well if you had a better motherboard I would recommend you overclock you cpu to around 4.5ghz, that would usually fix your bottleneck since your cpu is only at 3.3ghz, but your motherboard is bad so you will have to do a full system upgrade which means cpu, motherboard and ram to gain more performance. Or if your cheap you could always starp on a fan and put a heatsink on those vrms and try to overclock. If you are overclocking try Fsb or north bridge overclocking