Web-Embeddable-CDF: Animation has delays when moving the mouse

Hello

I’m trying to make a CDF to visualize the circles and angles of each wheels of a car driving a curve.

The CDF works fine by using Mathematica or CDF-Player, but if I try to use i with a browser (Chrom or IE), then I have the problem, that if I move the mouse over the panel, the animation has delayes. During moving sliders the animation runs well, so I dont think this is a performance-problem.

You can see the CDF here: CDF online (with the sliders on the left you can change speed and direction)

Does anybody know, what could be the reason for this problem?

Kind regards from switzerland. Juerg