So tons of times I just sub for the last 2 minutes / just when I sub and give up on my X spot in the X lobby for 2 minutes of gameplay.
So I say, when you sub the system can maybe indicate how long it has been?
Kinda like this:
That way peple wont leave current lobbies for no reason.
On the other hand it might make it harder to get subs. So perhaps you can make the lobby / score visible as well? Not sure, But I believe the time-passed one is really important.