Most of the maps are physically larger than TSoG maps, support up to 6 armies (as opposed to merely 2), and generally support more units per team (up to 24 per army). Meanwhile, characters move the same number of spaces, more or less, as they do in the earlier TRPG games. And I'm not even taking into account the fact that human opponents tend to think things through longer than a computer AI. I'd be very surprised if most TT battles weren't longer than TSoG battles.