Martial, SkinVue only works on pz3, so you need to import the poser scene, not the obj.
The Poser import can be very slow if you import with "allow reposing in Vue" and "use Poser shader tree" selected, because a connection to the poser.exe must be established and is kept open all the time. Each and every little modification made to the Vue scene is sent to Poser, Poser updates the Poser scene, and sends the results back to Vue, and then Vue updates the Vue scene.
Uncheck these options if you don't use procedural shaders in POser, and if you don't intend to repose inside Vue.