Internal 3D tools are too slow

Anybody knows some tips to improve the performance usind the native 3D tools from Flash CS4?
Because when you change the z coord (even if you put something like mc.z=0), or when you rotate along X or Y axis, your MCs are converted to bitmaps, thats reduce the quality of your vectorial graphics, but that’s not the only problem, I think Flash creates a Matrix3D for each MovieClip so the performance goes down exponentially if you have many MovieClips to be rotated or you need to change the z-coord…
I’m looking for a solution to this, but there’s no any usefull information :frowning:

It’s possible to remove the Matrix3D objects that are not beinn used in the screen? (remove the MovieClips from the DisplayObjectListener doesn’t change that because the performance still low even with mc.z=0).

Thanks !!!
enrique.