[F8] smooth dynamic images doesn't work

programming flash
1

[LEFT]i use this for smooth dynamic

import flash.display.*;
var mclis:Object = new Object();
mclis.onLoadInit = function(target_mc:MovieClip) {
target_mc._rotation = -15
var bitmap:BitmapData = new BitmapData(target_mc._width, target_mc._height, true, 0x0000FF00);
bitmap.draw(target_mc);
target_mc.attachBitmap(bitmap, target_mc.getNextHighestDepth(), "auto", true);
};
var mcl:MovieClipLoader = new MovieClipLoader();
mcl.addListener(mclis);
_root.createEmptyMovieClip("target_mc", _root.getNextHighestDepth());
_root.mcl.loadClip("fac/cf.png", _root.target_mc);

But the dynamic image loaded doesn’t smooth.
I only obtain smooth if i set _quality = “BEST” but this cause slow motion cpu.

I’ve been wanting and efficient way of doing that for a long time :).
Thanks
[/LEFT]