Since Day 1, all five of my Wyze Cams have a delay between the audio and video. The delay varies between 1nto 2 seconds. I always keep the cameras up to date with the latest firmware.
Welcome to the group! How often do you restart the cameras? You can set a rule to restart the cameras (I do nightly) and I believe that helps with the sync issue. I don’t know if it eliminates, but I’ve had it reduce the issue.