Borders need to have a fix

I'm fed up with cheaters who go to the borders of the map and use it as a cheat. I've went into the borders myself, it happens but when you keep turning one way then other using the border I think that's cheating as it moves the ships in ways that it's harder to hit. Yes I know once you get closer they've essentially fkd themselves but in the meantime you are losing health to a ship you would sink if it was in open waters. There should be a timer that if you're not away from it within say 20 seconds ( maybe different times for size of ships and turn radius) then you start losing health.