Ok, I have weird problem.. First I start game , than i'm going to  hotlaping. I have about 120fps@bl_Gp , but after few laps at same track place i have only 60 , after few more laps I have about 40... So , who have solution of this problem?
 
P.S
 
3.4 P4 , 6800GT and 1gb of ram.
 
 
HELp!
                
            P.S
3.4 P4 , 6800GT and 1gb of ram.
HELp!

