The X is correct but the hull is staying too wet, BH's do not trim well no leverage. Looking at the boat it appears to have a goodly portion of its weight forward. You may be a candidate for Arneson rocker plates, they will give you the bow lift you need. IMO your RPM's are way high for the drive, But I feel your slip number will improve a lot once you get the hull loose. Back to the X, having the bullet in the water flow gives you stern lift which is the last thing you need. Your boat will need help to run its best, a 22 BH has rocker to get it loose, but the rocker can make the boat get hairy at times. When I had the BH on my 22 my slip numbers at cruise 45 mph were very low, at WOT they were way up. I am now running a Bravo X and run almost 3 mph less at the same cruise RPM.
Phil
No matter what your beliefs are "GOD BLESS AMERICA"
Fully retired marine tech near 60 years in the biz.