Running python opencv code with the gpu on Jetson xavier AGX

Hello everyone
I am currently working on a AI / computer vision project which I have successfully run on my PC. I am currently trying to run my code on a Jetson AGX xavier but I have a problem: I am getting only 2 or 3 frames per second by displaying only one camera without image processing. I checked and my program uses the cpu and not the gpu. I know the performances are way better with the gpu
I’m trying to get my python program to work with the gpu without success.
my OpenCV is compiled with CUDA ( see image) and i dont know what to do more
Annyone has an idea of what I could do ?