Probably not fast for the bow. I shot a 70 lb general last year with FMJs and I was only getting about 252-254 out of it, but I was shooting a 27.5 inch draw. I went short on that bow for the same reasons you mention, but I went too short. My draw is 28.5, and 27.5 was too short. Your speed seems right. I always underestimate the speed gained with drawlength.