title: iOS Simulator games run very slow (low fps)
body: <p>Diving into sprite kit (xcode 5).  There are two example programs I'm working with, 1. the default spaceship example that's included when creating a new project and 2. the Adventure Game, which I downloaded.</p>
  
  <p>Running these examples within the iOS Simulator (doesn't seem to matter which).  The frame rate for each is absolutely abysmal.  If I add only 30 spinning space ships in the space ship / hello world example, the FR rapidly drops from 60 FPS to (ug) 12 FPS.</p>
  
  <p>The Adventure Game example, again, running in iOS Sim, runs at a screaming 10-20 FPS (depending on how much action is going on).  </p>
  
  <p>Is Apple serious with these game examples?  Sprite Kit seems to be crap -- I assume the problem is either the way the programmers employed Texture Atlas' or it's the way Sprite Kit (API) is dealing with them.</p>
  
  <p>Someone help me understand this or fix it?  </p>
  
  <p>Running xcode 5 under Mavericks, Mac Mini -- I program in Unity3D and have no problems w/ FR there, esp w/ only 30 objects using 2DToolkit.</p>