Is 75 kills with Tracer decent or good?

So, i've been playing with Tracer on the PS4 and am trying to get good with her. I've been practicing against A.I Competetive mode...medium difficulty. I've been able to get 70+ kills the last few times with her. I know kills don't mean everything, but just wanted your take on it. I also did 23,000+ damage. I could always improve.

@UnchartedPirate: AI is shit on Overwatch, do it against humans then talk.

I was going to say that's really impressive until I read that it was against AI... The AI is trash, play against other players if you want to see how good you are.