I have this same problem with the Doorbell 2. I don’t even get a notification until after the event has past. This happens even when I’m at home and the doorbell rings. I can get to the door faster than the video reaches my phone. I have tried going straight to Live View, but by the time the app opens and I select Live View and a video appears, the person at the door has already left. It makes the promise of Live interaction a moot point. Very disappointed.
The latency of your system is unacceptable.