Asking for a bow tune up will address most things,cam timing,serving wear,condition of the strings and cables,draw length adjustments if you have had string stretch,rest settings,centershot,making sure your arrows are properly spined and flying well out of your setup etc.
Stay away from the box stores find a proshop that the target archers use,get to them away from the august,september,october rush,they will be able to spend more time with you and your bow.