Loaded external swf vs CPU usage

Question

Halo.   I use the following code in order to load external "inde_2.swf" into "index.swf":    (for Flash Player 9.0)
stop();
var myMovie:Sprite;
var l:Loader = new Loader();
l.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, loop, false, 0, true);
l.contentLoaderInfo.addEventListener(Event.COMPLETE, done, false, 0, true);
l.load(new URLRequest("index.swf"));
function loop(e:ProgressEvent):void
  var perc:Number = e.bytesLoaded / e.bytesTotal;
  loader.percent.text = Math.ceil(perc*100).toString();
function done(e:Event):void
  removeChildAt(0) // was removeChildAt(0) but it make more sense this way
  loader.percent = null;
  myMovie = Sprite(l.content);
  addChild(myMovie);
  var container:MovieClip = MovieClip(l.content);
   addChild(container);
   container.gotoAndStop(890);
  l.contentLoaderInfo.removeEventListener( ProgressEvent.PROGRESS, loop);
  l.contentLoaderInfo.removeEventListener(Event.COMPLETE, done);
  l = null;
But unfortunately if "index.swf" is a complex file (with many objects etc.) , the loaded "index_2.swf" will play very slow (high CPU usage).
Is there any trick to unload "index.swf" so that "index_2" can play properly?

Answer 1

if index_2.swf is a resource hog, there's nothing you can do in index.swf to fix that.  on the other hand, you should clean up your index.swf code:
var l:Loader = new Loader();
l.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, loop, false, 0, true);
l.contentLoaderInfo.addEventListener(Event.COMPLETE, done, false, 0, true);
l.load(new URLRequest("index.swf"));
function loop(e:ProgressEvent):void
  var perc:Number = e.bytesLoaded / e.bytesTotal;
  loader.percent.text = Math.ceil(perc*100).toString();
function done(e:Event):void
  removeChildAt(0) // <-not sure this makes sense.  what are you removing?
  loader.percent = null;
  var container:MovieClip = MovieClip(l.content);
   addChild(container);
   container.gotoAndStop(890);
  l.contentLoaderInfo.removeEventListener( ProgressEvent.PROGRESS, loop);
  l.contentLoaderInfo.removeEventListener(Event.COMPLETE, done);
  l = null;