title: NSNotificationCenter vs delegation - which is faster?
body: <p>I have read a lot about the pros and cons of each , and i know delegates are usually for one listener, and notifications are for many. The question is about performance.</p>
  
  <p>I have read this : <a href="https://stackoverflow.com/questions/1927965/nsnotificationcenter-vs-delegation-using-protocols">NSNotificationCenter vs delegation( using protocols )?</a></p>
  
  <p>I am sending audio signals from mic, to another class by notification . i know that here i should use the delegate BUT my question is : does delegates will be faster ? because i can see i have some frame rate issue(decreased), and i would like to know if the cause could be the using of notification <strong>instead</strong> of delegate, or there is no relation ?</p>