wdadli1, with my setup, there were 2 types of delays that I wanted to reduce.
The worst was, when I initiated live view from the phone app (not when the doorbell detected motion), there would be a very long delay or a failure to connect. My best guess was that this was due to an unusual timing incompatibility between my router an the doorbell A chime pro solved this problem, but this may not be the problem you are having.
The other delay that I wanted to reduce may be the same as what you are seeing. That’s the delay from someone approaching the doorbell to being able to see the video on your phone. There are several things that can contribute to that delay. All cloud based systems will have delay from when someone approaches the doorbell, to the doorbell detecting the motion, to the doorbell successfully talking to router, then to your ISP, then to the cloud server, and back again to the phone.
If you have a poor wifi signal at your doorbell the delay can be increased. A properly positioned chime pro can greatly improve the signal at the doorbell. But I was already using a chime pro. My problem was the 1st 2 steps above. Because of limited space. I had to position the doorbell so someone approaching it would be walking directly toward the face of the doorbell. That made motion detection occur too late - sometimes when the person was walking away. Sometimes never. Motion sensors work best when a person crosses in front of the sensor.
To solve that I needed a way to detect motion reliably every time and a couple of seconds before the person was at the door. A Ring smart lighting motion sensor and hub solved the issue. I positioned the motion sensor several feet from the door and facing across the walkway to the door. In the phone app, I linked the doorbell and motion sensor. It works great now.