Wanted to get opinions/thoughts on if I should expect a little better performance or if my boat is doing good where it's at...Boat is a 2013 Alumacraft pro 185 with a 2013 90 hp Mercury 4 stroke. I have a 19P Stiletto SS prop. Motor is mounted on the second hole from the top and no jack plate. Took it out a couple of days ago with half fuel, tackle and 2 adults in the boat. With boat trimmed I got it to 45mph (GPS speed) at 5800-5900rpm (according to factory tach). As far as the rpm, I never hit the limiter alarm, so not sure how accurate the tachometer is. Thoughts?? What would be a few things to tweek if anything?