As for noise the first thing to do is to make sure all the bolts are tight.

Silencers - Don't use the cloth string silencers. They can absorb water. Slows arrow speed. After that I'd try stuff and see what works on your bow.

Use carbon arrows. They're faster AND they never bend. They're either straight or broken. Nothing like trying to sight your bow in and have a bent aluminum arrow giving you a flyer in every grouping.