Yeh, there are a few more things. Get a good set of aftermarket strings made from BCY 8125. If you shoot a lighter weight you might consider having them made with 2 less strands. Shorten the center serving. Most are 7 to 8" long. All you really need is about 3 1/2". I like 1 1/2" under my Tied-in nockset and 2" above.

Shoot feathers instead of vanes, shoot lighter nocks on your arrows. Make sure your center serving isn't too large in diameter (nock fit can be critical). Align your cams to eliminate as much friction as possible. Better yet, get a dual cam bow rated for a higher IBO rating. There are a lot of little things that add up.