Hi and thanks for your answer.

No, I don't want to remove the shapes as such. But removing the target geometry can in my experience speed up things quite a bit. A recently made a little comparison test, with about 12 targets. Hiding the targets gave me a few extra fps. while deleting them made playback jump from 20 fps to 32 fps.

Anyway, I would stilll like to hear other answers to my question?

Nenox