Load obj files in Poser with Smoothing set at crease angle 180° on all groups. Then set the Subd to level1. The result is all smooth flowing obj files.

I am working on a tutorial on how to get high to ultra high sculpted figures in low to medium poly Poser figures. Once you know the trick? it is dead simple to do so. And at render time? Yu can set the figures that are close to the camera to fine detail, and the figures in the distance to low detail to keep render time under control..