I had the same issue for about a year. The doorcam slowly degraded to
where nothing shows at all. No delay or anything. I also have a 1gb
connection. I tested out an Arlo doorbell and problem solved. Video
takes like 3 seconds. Also higher resolution...
I have a 1gb connection also with wifi6 and sometimes my video doesn't
even load, just the sound. Really annoying when trying to see who is at
my door from my office. Thinking may just get CCTV for video as a
backup.