I'll take 80% strikes every time!
I'm not worried about the hits. He's supposed to throw a heavy ball and have enough movement that if he keeps throwing that many strikes, even with a 7-8 K/9 type rate, he'll be very valuable. It's definitely too small a sample, too meaningless a league and too many factors to get any real feel for his performance, but I like that he's throwing strikes as advertised.