title: Why Xcode 4 code completion is slow?
body: <p>Is there anything to do to make code completion react faster?</p>
  
  <p>I have the same issue on mac mini 2010 with 4gb Ram and on iMac 21.5 i3 2010. </p>
  
  <p>I there something to set to make it work faster? or is just me that I have this problem? </p>
  
  <p>Does any one have the same issue?</p>