It seems that Microsoft is planning on an upcoming patch that will improve the the Xbox One's graphical performance. From the what Hot Hardware gaming insider Pete Doss has mentioned, it seems that Microsoft will be reducing the GPU requirements for the Kinect in order reach the desired effect.
Currently the Xbox One is programmed to reserve 10 percent of its total GPU power for the Kinect, out of which 8 percent alone is required for video processing. According to speculation, the upcoming patch will be freeing up that 8 percent so that it can be used for actual gameplay, and leave the 2 to be used for Kinect’s voice input processing.
This patch could be an effect of the scrutiny that Xbox One is receiving recently. For example, Tomb Raider: Definitive Edition has been reported to perform at 60FPS on the PS4 while the Xbox One version plays at varying FPS throughout. This patch will not be able to bring the Xbox One on par with the PS4 version but will at least let the game be played on a steady 30FPS on the Xbox One.
IGN reached out to Microsoft regarding this issue and this was what the spokesman had to say. “At Xbox, we are always thinking of what’s next for our platform and looking for new ways to innovate. We believe Kinect is an integral part of the Xbox One platform and its use of voice and gesture lead to unrivaled ease of use, premium experiences and interactivity for consumers. Beyond that, we have no further comment.”
This does not deny nor confirm the rumored patch. More waiting is required it seems.