How many milliseconds do you think this page took to render? I usually click and it's already done.
HN is a fast site (comparatively; most websites are unnecessarily slow). It’s a bad measurement.
HN is a good website. Ebay is another good example where JavaScript is optional but with good functionality. Marko was mocked, but now Astro is cool because they invented ssr...
HN is not the most complex website rendering wise by any imaginable metric. I presume HN renders equally as fast on lynx or Mosaic from 1994...