It happens often to me that a game is over by math, either I won or lost it doesn't matter, still the opponent keeps on playing.
If I lost, that's ok, I resign and that is all.
But I won, it's annoying. I would like to jump to another game.
May you implement a funciont that calculates if you have mathematically won the game (not possible in games with cards that give +1VP like Momnumet or with cards that may trash your VP)? When it comes to a plain game, that could be an interesting option.
Have you tried chat to ask your opponent to resign?