Just had to post this - I'm sure many can relate, whenever I see a graph like this I just have to share. Switched from apache 2.2 http, to http/2 NGINX config on March 4th:
Indeed as expected.. I've been using my CentminMod.com LEMP stack - Nginx/PHP-FPM/MariaDB combo since the start
though crawl stats isn't really indicative of the change - you're better using Google Analytics Site Speed section to see exactly how real visitors on real relative ISP speed connections experience for your site since the switch to Nginx