You mean lag between an active game and a live bet then.  I do live betting, not on table tennis but a different sport  and it works for me.   It can be disconcerting as the odds change but its a useful facility to place a bet during a game, I'd be too late often otherwise.   I'm not going to argue it can match perfectly especially breaks etc what you see on the screen but I've not had it cause any upset or drastically change without reason.    Bets also can be cashed out with some cost to it or to some profit if the odds swung your way at all, apologies if you meant something else.