I use 10 minute quarters and call my plays a bit slower to go along with the CPU and I see a good average of plays per game. Without accelerated clock you'll see players fatigue faster and sub out at a good rate even on default fatigue. I still don't think auto subs matter but you will see more rotation. Unfortunately you still see offensive linemen coming off the field but with lower fatigue you'll see it at a lower rate. Progressive lighting and the degrading of the field and uniforms seems better with out accelerated clock.