PHP is slow! I guess you've heard that sentence quite a lot of times. And yeah, let's give them some credit: PHP WAS slow. Starting from PHP 5.4, it has gotten faster with each subsequent release up to doubling the performance in the historic 7.0 version. But now what? Have we already hit the limit? What if we could get a huge boost just by rethinking the whole request-response process? What if we could reuse work done in the previous request to speed everything up? Join me in this talk for an in-depth review of how we can get a full-stack Symfony website like Ulabox to serve lightning fast requests with ReactPHP and PHP-PM.