Minor star bug

This is a report for a small bug that occurs when you move around the battle field using the battle mini-map. When you click and hold on the mini-map, the game usually scrolls correctly. But if you keep “pushing” against the border of the mini-map, the middle-layer of fast-moving stars scroll by super-fast (even though the battle itself stays in place).

I hope this makes sense and that I’m not repeating a known fact.