The dollhouse view is actually a low detail version of the 3d model, with low resolution textures, it's just really not meant for a close inspection :) Load time and performance has been high priority for us, particularly because we also support mobile devices. We might do something like streaming in higher quality mesh/textures in the future, and allow closer inspection.
As for VR... we're playing around with it a whole lot, and it actually looks really great! Hopefully it'll get in front of more people somehow soon.