That was likely a singular measurement, likely from your notebook. A user at some other location might very much disagree, unless your site has a CDN as extensive as Google.
"Pinboard founder Maciej Cegłowski already recreated the Google AMP demo page without the Google AMP JavaScript and, unsurprisingly, it's faster than Google's version."
"Pinboard founder Maciej Cegłowski already recreated the Google AMP demo page without the Google AMP JavaScript and, unsurprisingly, it's faster than Google's version."