I am wondering why the fact that you can speed up the simulation hasn't come up before in this thread. Although I don't play on F&D mode, I do regularly hit the speed up. Sometimes I even just play on speed 2 for extended times.
Next... Is there a way you can do speed 90%, 80%, 70%, etc., to slow down the game? Not usually relevant, but larger battles I have to pause, order, play, pause, order, play, when running at, say, 50% or 25% speed the whole time would be just as easy.