Teleporting shouldn't cause framerate issues.
We will make sure you don't wait between duels if you are ready to go instantly. We will add more arenas to the map if it becomes an issue.
FTx option is interesting, we might add it if redueling ends up having too much time loss. Will playtest first then think about it. Thanks for the idea.
Lowkey, even if the wait between rounds is negligible, this is such a QoL feature. It means there's less work for players who are already interested in exclusively duelling one person. It doesn't need to be a huge improvement, it just makes the player's life easier. You know?