Been having issues with my 2019 phoenix 921. Used to run 73mph all day long. Now i have noticed i cannot get above 66mph under tourney load. Merc still turns 5850 rpm but feel like my motor will not trim up quite as far as it used to. i can only trim up about 1/4 of the way. Anyone have any ideas? Atlas sits around 10 on the gauge. Toggled that around as well. Cannot get any more out of it.