I have the same issues.. or impatience XD

Sometimes it helps if I look in DAZ to set Subdivision to 0, but not all chlothes seem to have this option. Sometimes, if I see the obj. (imported into Poser) has many many polygons I reduce the polygones via the menue (object - reduce polygones).. sometimes it workes good ^^ I usally reduce as much as I can without destroying the mesh. DAZ clothing are incredible high polygoned... I have no Idea how can DAZ handle this and Poser not :(