Not really happy @figle . I am really reaching the end of it to get consistent 30fps with a procedural and interactive drawing. Nothing fancy like image processing. I’d think you’d struggle with OpenCV. I truly wish to make it work on RPI 4 one day and have a more future proof path. Have considered going Nvidia Jetson but haven’t done so yet because I am afraid to run into the same issue I had with processing 4 on RPI 4 and having to deal with a less optimized code to handle P2D.