I think that one thing NF1 has that NF2 doesn't, is the ship damage / speed ratio. When a ship gets major damage against it, the speed goes way down and when the ship is on fire it can not use overheat. This should also be in NF2.

I have seen many severly damaged ships outrun other ships with no damage. How? If the ship is on fire and has lost a lot of its armor, it should move slower then normal. I think this should be put into NF2