Redmond could be doing a lot more in this area to provide a quality experience for Xbox gamers away from their consoles.
The Xbox app for Windows 10 and other platforms is a pet peeve of mine, for it's unbearably slow speed, clumsiness, and generally poor usability. As Xbox's platform team works to improve other areas, such as dashboard performance, other aspects that have been a tad neglected are becoming a little more obvious.