Oh, so you slightly misguided me with machines mention. Machines do not matter so far as you have enough cycles to power DOSBox (i.e. anything newer than Pentium III.
So, cycles would be my starting point. How high are these? "Auto" usually the best solution, but sometimes it's failed. "3 000" usually a bad idea. "30 000" mostly the same as "auto" for any game, except most demanding ones.
