I have a trick when i texture V4 in Deep Paint 3d. I have downloaded Daz Studio got the LOD v4 ( there are a couple of them) i picked a lores version of vicky and hacked her CR2 to use her in poser 7. The morphs wont work but textures will . If you reduce the textures by 50% and use a lower V4 model it will speed up the process a lot i think.