Sure a rtv system isnt really good for such a server but maybe it should be allowed after a certain "goal is reached" instead of just allowing it overall. Maybe have a chance to rtv after a certain amount of puzzles completed, time inbetween clears, total deaths, or maybe overall time on the map. I would prefer one where after a certain amount of puzzles is cleared and no puzzles have been cleared after said number of puzzles.
Just a thought.