Live casino platforms stream games from a real casino in near real-time, using...

https://wiki-stock.win/index.php/Why_Does_My_Live_Casino_Stream_Look_Fine_But_Buttons_Lag%3F

Live casino platforms stream games from a real casino in near real-time, using low-latency video to keep the action smooth. They use WebSockets to instantly send your bets to the dealer and update results