MuseStrings tremolo playback is terrible in Musescore 4.2.

I'm having serious issues with this new version.

The tremolo basically turns into a ridiculous robotic repeat of a fracture of sound. The glissando playback also got worse in 4.2: from 4.x to this version the sound at least had some (very insignificant, to be honest) responsivity to the notation, but now it is totally gone. I thought ornaments and articulation would be enhanced, but it just got worse.

Also, I tried to install a previous version and run my score on it, but it just won't. I had saved my score with the new version already, and backwards compatibility isn't supported anymore.

I feel profoundly displeased, since MuseScore literally made my playback worse, even useless for the purposes I had in mind for it.

If someone has any idea on what can be done, please help me!