According to Google’s own Page Speed Insights audit (which Google recommends to check your performance), the AMP version of articles got a performance score of 80. The non-AMP versions? 86. Mind you, the AMP versions are hobbled - unauthorised javascript interaction is forbidden by Google, so you can’t vote or comment in place - it’ll kick you to the full version of the page. This is the fruit of weeks of labour converting the site: a slower, less interactive, more clunky site.