Zoom Workplace

Most likely you have an unstable internet connection, especially if you are using WiFi on a laptop. Streaming video likes to see a stable internet connection (preferably ethernet). WiFi  does an encode/decode (with less than optimal bandwidth) of the stream to connect to the access point or router, then does another encode to connect to the internet. Typically IOS devices tend to do better over WiFi than laptops, but an ethernet connection is always preferable.