Live translation does not mean zero delay
The service needs time to capture a phrase, recognise it, translate it and generate audio. Phrase length, the network and voice-service availability affect the delay. There is no fixed two-second guarantee. Test with your own connection rather than treating an illustrative demonstration as a benchmark.
Give translated speech room to play
Short, clearly separated phrases help listeners follow the original speech and its translation. Start with a small group, check volume and avoid talking over one another during the first test. If a phrase fails, check the bot’s permissions, language settings and remaining quota before trying again.