AS3/ PV3D: When adding text3D to planes in a carousel the rotaion slows to a crawl

I have added 2 text3D textfields for each plane that gets rendered via xml. Everything works fine, yet as more planes get added via xml the carousel slows down considerably. If I remove the text3D fields the carousel rotates very smooth and at normal speed. Is this just a limitation of text3D in Papervision3D or is there a way to optimize this better? Yes, smooth is set to false and images have been optimized.

If anyone can shed some light on this I would greatly appreciate it.