QNP dosen't help the situation much, though...
Those fast ships are going to have to be light on armor and guns to get that speed, and will thus get their asses kicked by the warships that are running away
What I'd like to see is a circular map limit.
There would be no corners to be caught in, and even if you're heading right towards the wall, your ships will end up randomly turning left or right to escape. Then it becomes a more reasonable chase around the perimeter. Equal speed ships will slowly catch up to the runners, while faster ships do get to stay away.