IE inline player is faster then Player?

[chemiche]

Hello everybody :)
I've met one strange thing in AS3 :)
swf played in IE7 ( player version is 9,0,124,0 ) uses 1-3% CPU
and same swf played in FlashPlayer ( version 9,0,115,0) uses 10-15% CPU

Can anybody tell the reason?! : )))

[Groady]

I've heard that IE limits certain resources to flash. I don't know if this is true or not. If it is, that may explain why flash in IE is using less CPU resources. For example I generally notice flash performs better in Firefox than it does in IE7.