Different Speed Of Animation Requestanimframe Javascript

I have a problem with window.requestAnimFrame. It works in different ways in FF,Chrome and in IE9,Opera. For example this http://jsfiddle.net/vZP3u/2/ (tacked from another questio

Solution 1:

Opera and IE do not support requestAnimationFrame yet. So your code runs at 33ms setTimeout fallback.

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More ontopic:

http://paulirish.com/2011/requestanimationframe-for-smart-animating/

http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating

https://developer.mozilla.org/en/DOM/window.requestAnimationFrame

http://blogs.msdn.com/b/ie/archive/2011/07/05/using-pc-hardware-more-efficiently-in-html5-new-web-performance-apis-part-1.aspx