I have same problem dude. System specs: Intel Core i5 467K (overclocked to 4.4 Ghz) 16GB DDR3 2400Mhz 2x MSI Radeon HD 7970 Twin Frozr III I use the ArmA2/CO profile. Game runs well in woods but like most peeps game really struggles in cities. In order to get payable fps in cities im forced to changing my Object settings from high to very low and disable Anti-Aliasing. Hopefully new render brings better optimization.