Video playback on timeline freeze for a few seconds then continue playing.

No errors this happens on my iPad and galaxy 5 phone. It happens to my sister also. Same iPad galaxy 7 phone. Very annoying. We have the doorbell 2 and the floodlight. We have both houses shared and happens to both of us. I was wondering if maybe it’s a firmware issue. Our internet speed is 300mbps. We also tried using our data. This has been happening for several months. We tried uninstalling and reinstalling the app. People would walk by and then video would freeze,time stamp would still move of time of day in seconds but no video. Not sure how to post video here for you to check out. Thanks for any help you can give me.

steven troise