Oh, maybe it has a very large resolution, like width having more than 2K pixels. This can indeed be a problem with the game since the dimensions of the gfx assets are static and don't adjust relative to the screen.
Currently there is no zooming available. I'd first have to figure out if and how this would be possible. But I want to replace the media component (DirectX) with SDL2 or SFML in future which will open new possibilities.
Thanks! I am planning on making an update soon.