compressing big video frames (4k) takes time. If your application is latency critical (and drones moving at 100km/h is) and you are streaming at 120fps you have

compressing big video frames (4k) takes time. If your application is latency critical (and drones moving at 100km/h is) and you are streaming at 120fps you have only 8ms for video frame processing. Sometimes you also want uncompressed data (lidar, depthmap) not for human but for machine computer vision / processing.