A number of people have been complaining that the new Siri demos during the keynote videos were a little on the slow side. There were notable lags of several seconds between Siri requests and the task being carried out.
Source: [9to5Mac](https://9to5mac.com/2026/06/10/siri-demos-in-keynote-were-a-little-slow-but-thats-good-ish-news/)