spark.effects.Wipe - Wipe Performance Has Degraded.

Steps to reproduce:
1. Compile and run the pasted sample.
2. Click the "1" button. Watch the wipe.

Actual Results:
The wipe animation is choppy.

Expected Results:
The wipe should be smooth.

Workaround (if any):
None.

APP:
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/halo" minWidth="1024" minHeight="768">

<fx:Declarations>
<mx:ArrayCollection id="dp">
<mx:source>
<fx:Number>0</fx:Number>
<fx:Number>1</fx:Number>
</mx:source>
</mx:ArrayCollection>
</fx:Declarations>

<s:layout>
<s:VerticalLayout horizontalAlign="center"/>
</s:layout>

<s:transitions>
<mx:Transition toState="state1">
<s:Wipe duration="5000" target="

" direction="left"/>
</mx:Transition>
</s:transitions>

<s:states>
<mx:State name="state0"/>
<mx:State name="state1"/>
</s:states>

<s:Group width="400" height="300">
<s:Panel id="panel0" baseColor="0xFF0000" width="400" height="100%" includeIn="state0"/>
<s:Panel baseColor="0xFFFF00" width="400" height="100%" includeIn="state1"/>
</s:Group>

<s:ButtonBar id="bb" dataProvider="

" click="

"/>

</s:Application>