Graphic card

Hi!
I have uploaded a video game to the windows store. The problem is that when people download it, it runs with the integrated graphics card.
Some have the configuration so that everything runs with the dedicated graphics card but my app continues to work with the integrated one if they do not change it manually.
This is the case for all the windows store app or do I have to do something so that my app runs automatically with the dedicated graphic?
I am somewhat frustrated as some people tell me that the game closes and that they are running it with the integrated graphics card.
Any guide for this? I developed the game with unity

Thanks

See Windows store universal app not using GPU