Midi playback sounds like it's drunk (Bug or ?)

Whether entering notes or playing back the whole piece, the midi sounds drunk. I don't know how else to say it. It skips and hiccups for every note, and the timing is very inconsistent.

I never had this problem on my old laptop with Windows 10 & Musescore 3. But sadly I had to get a new one, I now use Windows 11 and Musescore 4 (latest versions). It is a new laptop and other audio in other programs all sounds great so I don't think hardware or audio software of the laptop itself are broken.
I simply enter notes into Musescore with the mouse, no other devices connected.

Is this a known bug? If so where can I track progress?
Is there something I need to change from the basic settings?
Is Musescore 4 not compatible with Windows 11?

Please help me fix this, I rely on the midi playback to point out wrong notes and it's pretty useless now.