If it gets worse and your repair parts are not ready, then shut the velocity OFF. That will raise the volume of every note to meet the offensive one.( lousy for piano sounds, but at least constant volume. )

You can then lower the general volume and modify your playing style for a bit till the repair is done.

Not the favorite way to play, but better tyan having that random SHOUT in the middle of a ballad!
Every instrument, every voice, every sound in nature ... these are are all my private tutors ... 24/7 for free, and all I have to do is listen.