Does Windows take the most exceedingly practical method of displaying image as a secret ? Such that can't the ordinary people like me use it ?

I know an app of machine vision that takes 0% CPU usage rate while displaying very high resolution image(2000x5000, 10000x10000 , and higher, of cource with two scrolls) captured by an industrial camera.

I had tried all usual methods of displaying such as "Windows GDI", "Opengl texture", "opengl FBO", "Opengl PBO", "DX3D texture", "DirectShow", "DXVA2", and no one makes that performance. 

possibly, I just didn't grab the essence of these methods.

The following is the amazing app's performace

Note that:

1.the camera is shooting a conveyer belt that carries some commodities with a barcode.

2.Images are captured by an image capture card, so that capturing is not a thing that uses CPU.