A conservative sailed uni which does not capsize is always faster than an agressive sailed sloop which capsizes.

I sailed regular single handed dinghies, some with asymmetrics. It is a good training for your reactions. After sailing those boats (and capsizing to lee and windward, gybing during hoisting and all the other nastiness and then going back on a catamaran, I simply do not capsize or pitchpole. The capsizing or nose diving of a catamaran feels slow compared to a dinghy and gives you ample of time to react. It is just a matter of perspective, if start looking from a crew cat, sailing uni is difficult.

Coming back on board for shorter people may be difficult. You can't get taller, but you can train your arms to pull you up quicker. But it is maybe easier said than done.

And the end it is all about training... and very satisfing