Dogfighting against and in a 163 is difficult. Mainly because you're a small target, you don't have many rounds to make snap shots and such, your small fuel supply and the fact that you are very vulnerable when landing.
The 163 is just meant to get to altitude quickly, make a few passes on the bomber stream, run out of fuel usually, and glide back down. I think at max you can get 10 mins out of the tank.