I ran the numbers on your setup with an arrow selection software. Some assumptions that I had to make: arrow cut length 26", arrow spine 55/70 (static spine .390). Your optimum spine is .408 so your arrows are a little on the stiff side, FOC is %15.3, calculated bow speed is 270.8 FPS, Kinetic Energy is 56.69 ft-lbs. Some of the programs recommendations are: add weight to the front, remove weight from the back, increase draw weight, remove weight from the string or choose a weaker spine.
If my assumtions were correct than IMO the best adjustment to make would be to adjust the bow weight to 68 lbs. This would make your setup near perfect for these arrows. It would also increase your FPS to 276.2 and your kinetic energy to 58.97 ft-lbs.
If your arrows vary from what I selected let me know and I will run those numbers