Good app!!!
My ptz cameras has a good response using this app. May I suggest additional controls to easily switch between cameras and a button to disable tilt or a config to set exponential or maximum speed to reduce vertical movement when panning. Maybe it is also possible to make the virtual joystick to have some sort of speed reducer when it returns back to its neutral position or that activates when you lift your finger, so that it may add inertia or more natural movement from the camera. Thanks! More power!