Light=fast
skinny=fast
volume=stability

The longer and deeper amas help keep the boat from burying the amas, in fact this model is designed to be able to fly the center hull in stronger conditions (which is why they put the rudders on the amas). However it would be fastest with the center hull just about to break out. Narrow BWL improves speed.

I expect this boat would be able to break 20 knots easily and safely, pretty awesome for 25 foot sailboat.