[Newbies] Morph speeds up stepping when grabbed

Hi!

I'm having some performance problems with morphs, I think.

I have made two morphs: first is the owner of the second and the second one is doing stepping with as little timeStep, as possible (1?). Still it's too slow.

When I click on the morph, the owner is being picked. While in the air, the step function for the submorph suddenly gets called very often and the animation is nice and fast.

What's the reason for that? How can I modify the morphs, so that I get faster animation, when morphs aren't grabbed? Is it because, while in the air, one morph or another gets different stepTime or the step method is called in a different way? Or maybe some part of the code is not being run resulting in less overhead?

Thanks for your help :)

cheers, kropki