I'll try that and see what it does!

I just downloaded Pianoteq, because I love the clarity, depth and realism in the sounds.
When I try to play and record in GarageBand, it sounds "muddier" and not as dynamic.
What am I doing wrong?

Hello RobbieB and welcome to the forum,

I am a Garageband user too, have a bit older version, 10.3.5 2014-2020.
But I can think of keyboard sensitivity - under the tracks there is a slider, Keyboard sensitivity, with neutral , more,  less, moving right or left. Moving left sound is a bit ”muddier for me using M-Audio 88, try right when playing. Or check velocity curve, or check equalizer.
Might help or not.
What keyboard are you using?

Best wishes,

Stig