I have a Amd Athlon (tm) II X2 245 Processor. 29000 Mhz,2 Core (s), 2 logical Processor. Total Ram 6.0 GB, ATI Radeon HD 4270. I will really like to see sl in ultra graphics, but It just lags to much.. How can I be able to see SL in ultra graphics, with out the lag, and perform almost as well as it would perform with low graphics?