Had the boat out this weekend and still think the RPM’s are a little low. Running 65MPH @ 57000 RPM with two people and full tanks of gas. I am running a 28P x 14.25 Suzuki Prop. Motor is about 3” prop to pad. Boat is a 2008 Z520 and does not have power poles or Talons. Seems a little slow to me... thoughts?