Hi all and sorry for my bad English.
When i use the preview window to rotate the camera , everything is ok, i mean is faster. When i try to rotate the lights or try to bend part of figure like V3 or V4 the performance decrease like i use the software engine (SreeD). I don't have the same experience with Poser Pro. I also try to change values in the Poser.ini but nothing is changed. I have a high end computer Q6600, 8GB Ram and G295GTX. Is a bug or something else? Thank all. ^^