Did you try using the site with the inspector open with Poor 2G throttling? I was still able to interact with the page within milliseconds. Just had to wait for the font to download before text would appear. Then after that, all of the assets besides the HTML was cached.

I think that's pretty damn good; to solve the 2 second latency, I think the developer is better off using a CDN or Netlify's ADN so that your site is delivered from a server closer to the user.