If your UI is basically static, your video stream will also be low bandwidth. Sending vector commands only makes sense if you have simple vectors. That isn't t

If your UI is basically static, your video stream will also be low bandwidth. Sending vector commands only makes sense if you have simple vectors. That isn't the case for modern apps and can't be the case for many kinds of apps. Have you tried modern remote desktop solutions, like Parsec? Streaming 4K games or CAD works quite well, latency is about 20ms over the internet, low enough for most things.