The VideoLAN Forums

The problem is on windows 10 with VLC version 3.0.18.
I tried PotPlayer and that one works fine with these files and subtitles enabled.

I also have files with the same problem.

Those are mkv files of 720x574 with two VobSub streams.
Both streams make the video stutter at subtitle text start.
With subtitles off, the video plays fine.

So you can add another user which have this problem.