I think your boat must be wet. I don't think the bump behind your boat should be worse than a Prostar 190.

I have not skied behind the model boat you have but I have skied behind a variety of boats. Prostars from the 90's, 2014 Nautique plus others. I have a 90 Brendella super comp and a 2000 prostar 190 . My experience is that the older boats tend to have the best wake when it comes to the bump. The spray is usually worse and the rooster tail is usually worse but the boats tend to be so small and light that the bump itself is smaller.

The bump behind my brendella seems to be the best of all the boats I have skied. The spray can be bothersome on a windy day and it does not track as well as the Prostars but the bump is smaller and softer.