Originally posted by mtmckinley I usually delete everything's history before binding, to make sure nothing else is being caluculated, except maybe necessary things like Blend Shapes. ok, i am out of ideas. i removed everything - only left the shape of the body and the skeleton. before you bind it - all works fine. after smoothbinding there must be an exponentional slower thing the feet mover work ok after binding, so does the hand, but really slow. but once you touch the root bone and rotate it - not working very fast. here is the file to look at (the skin is not bound in it). if someone finds the reason it is so slow after the default smoothbinding, i would like to know as well. file is in 4.5