Velocity Settings on Dynamic Marking

I love Musescore 4, but I cannot switch over until there's a way to deal with nuance in the dynamics. The difference between Trombone's mf and f is insane.

I mean listen to the difference between mf and f here:
https://drive.google.com/file/d/1Wa3Mr2EQYlnXcVLNZCc_GRFyHaoXetXO/view?…