eufyCam 2 video lag with echo show

I just installed 2 eufyCam 2 with homebase. Works fine except there is a major video lag when displaying on an echo show device. It gets worse as time goes one. For example the video lags about 15 seconds (or so) by the end of the first minute. It’s roughly 30 seconds behind after 2 minutes; 45 seconds behind after 3 minutes, and just gets progressively worse. I made sure I upgraded all firmware as soon as I installed the system. Any ideas how to get rid of this progressive video lag? (Audio is always 5 seconds behind real time, which is acceptable.)