The 100ms -> 1% line comes from amazon. https://dexter.agency/blog/100ms-faster-1-more-revenue-how-s...
I feel time-to-interactive is more important than just the page load as a user, so I can see why it would matter.
There is a trick in remix which improves user experience somewhat. https://twitter.com/ryanflorence/status/1547959632663961602?...
Qwik also saves on network bandwidth. The benfits of qwik will be felt most on slow network connections and old mobile devices.
Feel free to correct me if I got something wrong.