Here some tweaks to improve framerate.

[JG14_Jagr]

From my testing SHADOWS should be turned to OFF, the performance hit is just not worth it. 100fps turned to 70fps with the only difference being the shadow setting. AA doesn't seem to provide much for the performance hit either. Some of the other settings you might as well go HIGH because the performance difference between low and high is very small while the look difference is very big. Using the same Quick mission over and over while changing 1 thing at a time let's you see the difference