[Touche]

Pick a few random sites from the Gatsby showcase on their homepage and run them through webpagetest.org Simple Testing.

[tomnipotent]

shopflamingo.com, ideo.com, ca.braun.com, and bejamas.io are all blazingly fast for me.

[davidwparker]

Ideo has a pretty bad insight score (41): https://developers.google.com/speed/pagespeed/insights/?url=...

First paint: 4.1 Seconds. Time to interactive: 11.5 Seconds.

I wouldn't say that's very fast.

Edit: I didn't check the other three.

[davedx]

shopflamingo.com gets 47

ca.braun.com gets 77

bejamas.io gets 96

So implementation dependent I guess

[Touche]

You mean your computer or on webpagetest.org?