[ November 04, 2007: Message edited by: Grek ]
Only way to speed up the game is to raise your max FPS past 100.
I lied, actually. The game could be sped up by skipping frames. This is nicht gut, however. You lose gameplay integrity by only calculating the game state every 2/3/5/whatever frames. On games that are more graphically intensive - i.e. modern FPSs with dynamic water and the like - optionally skipping the render step on some frames may actually give smoother and faster gameplay, because the main bottleneck in those games on some computers is generally rendering (GPU time, pipelines) rather than CPU time (core FPS gameplay has not generally changed since the 90s, and most extra CPU time in modern FPSs is actually for graphical calculations like dynamic water, raytracing, etc., which can usually be turned off in game options).
The point is, DF is not like that. CPU is the main bottleneck. By skipping actual game calculations you lose gameplay integrity and introduce new bugs and odd effects.