Do you guys set the FPS Limiter to 60? I'm pretty sure I've had it at unlimited. I just switched it to 60 and it seems to help keep framerate smoother and more consistent.
I also saw someone on the forums suggest enabling Multi-GPU even for single cards. I think I've been using that for a week or two. I did a frame timing analysis and it's definitely worse with my single ATI 6970.
I tried making more of those charts with FRAPS but I should've done it with a repeatable timedemo instead. It's kind of hopeless though: in the end the TrackIR / force feedback stutter is worse than anything I get from reasonable graphics settings. (Unless I throw 25 AI planes into a quick mission -- that always kills framerate!)
I'm tempted to consider a non-FFB joystick. It's hard to tell how much I get out of the game from force feedback. Maybe I'll pull out my old Saitek this weekend.


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