im running a 3.0ghz p4 1mb cache 800fsb, 2gig Pqi pc4200 ddr2, geforce 7800gt, 250gb 8mb cache hd. is the cpu bottle necking my cpu? as im only getting around 30-35 fps on max settings on fear using AA8x S and 16x AI 20-25fps on it and on doom 3 at ultra quality 30-35f AA8x S and 16x AI getting 35-30fps is this normal?