Glad you mentioned both of those things, Jared and Black Hawk.

Those screencaps were while Rogue was running in the background and not overlayed. When I hit F12 to overlay the browser the in-game framerate dropped even more, though I don't have numerical values to put on the further drop. It's bad all around.

I did change the options to 'game' mode with little to no effect. Should have mentioned that as well.

Perhaps it was something in my setup. Perhaps Flatout 2 is just too old. If anyone has better luck with the software, please let us know.