Ok,so,i understand this is alpha stage,but my problem is really weird. My specs are
AMD FX 8350 3.5GHz
Nvidia Geforce GTX 660-TI
8GB RAM Corsair Vengeance
Western Digital Black 1TB 7200 RPM

I get 25-35 Fps in big cities on very high settings,the weird part is i get the same Fps on low settings in big sities.My Cpu also uses only 25% and it never goes higher.If anyone could shed some light on this,it would be great. I have also submitted my Dxdiag.