quantum is the first full Dx12,it displays one frame by calculating 3 frames,it renders at 720,even on pc,and runs everything on the GPU it's hard coded to run at 30FPS,even on PC and even when turning of the 30FPS lock it tops out at about ~50FPS.
A lot of this we already saw with older Dx11 ports,still a lot of people where asking for Dx12 so that ports would become easier,you got your wish.
Sadly I can see this becoming the standard for the foreseeable future,games that will run great on tablets and not even 1.5Ghz CPU cores but will greatly underutilize a PC.