Maybe this will help someone like me with spec amd x2 3.4gz , onboard graphic ati 4200 (clocked to 850mhz)
i just change this in graphic.cfg
CloudAspectThreshold = 0.03;
to:
CloudAspectThreshold = 60; (1 is enough actually, but you can see the cloud move every 1 second , so better make it higher so u don't notice it))
yeah the cloud so heavy for my card, now i can play smooth without lagging, like FC 1.2.