The 2.5L 200 is pretty weak on it low end coupled with a Trophy prop which is decent but is not known for lots of grip at low RPM. Changing the motor is an option but expensive one. Changing the prop is the only way to go. A Fury 4 or a Bravo would be good choices. The Powertech TRO4 is another really good one too. It just comes down to pitch and what works great on your boat. On the Fury 4, a 23P would probably be best (if they make that size). The Bravo and the TRO4 would be a 24P but could be up or down 1”.