SETTING: “Sound and MIDI: Larger max. buffer size (from 4096 to 8192).
In MuseScore Studio Settings, I would suggest increasing the “Buffer Size” for the Sound settings, by a value (at least) twice as large (from the current max of 4096 to 8192, or even more), to be set manually for willing users.
I believe this would solve many important issues in MuseScore Studio, especially when playing large/extended scores.