You definitely want a hush bolt. after that I would say to run a cp reg or a hyper 3 (if you want something that will make a bigger difference reg wise go with a violent) also do a new barrel (this will make a huge difference in accuracy as well as efficiency because air can't travel around the ball). Also a new Asa would make the feel a little better. I recommend a hybrid quarter turn because it is a cheap on off. And send the board into tadoa to get flashed or buy a virtue board.
If you can do these thing you will have a sweeeet shooter
We play this sport for the thrill. The passion of the fight. After each game thank your opponents. For they are the ones that reveal to you who you really are. With out them you are lost. We put our soul into each second of the game to ensure the adventure on how we got to where we are today. This is a sport of the gods and lets treat it with dignity and respect.