Nice work! With a bit more you are almost to a Second Life style editing experience. I got 60fps when I used it, according to the meter. I am curious though what makes this a HoloLens simulator as opposed to a WebGL VR demo? Given the high price of HoloeLens from a consumer device perspective, getting an open source VR platform that's compatible with HoloLens APIs and possibly apps would be a big win.