Tina,

The Aqua Cat was designed back when the Dead Sea was only sick.
As a kid, I remember sailing on one a couple of times with my dad back in the mid 60's.

Borrowed one off the beach in the late 80's that was in VERY Good condition.

The only things I really remember about sailing the boat was that it wouldn't point worth a darn, and that it had a hellacious amount of weather helm.

You might be able to make some adjustments to make the problem less annoying,
like raking the rudders further under the boat,
and possibly raking the mast back more to move the center of effort forward.
(altho if i remember the design correctly, that might be a bit of a challenge)

Bottom line, my guess is that it is kind of "the nature of the beast" with that particular design.

Stephen