Added a check around line 1550 to only apply DXImageTransform.Microsoft.Matrix filter if it is needed (if an element is either rotated or scaled).
This is a relevant improvement for two reasons:
Improved performance in old IE versions: I went up to 25fps from about 15 fps by getting rid of all the Matrix filters on elements that aren't rotated or scaled.
Added a check around line 1550 to only apply DXImageTransform.Microsoft.Matrix filter if it is needed (if an element is either rotated or scaled). This is a relevant improvement for two reasons: