I'll be speaking at DrupalCamp St. Louis 2015 at SLU LAW this weekend. My session, High Performance Drupal , will cover many quick performance wins for Drupal sites, and will fix an example site that simulates many performance problems seen on real-world Drupal sites.
Sorry it's been so long since posting hereâI'm still working on my book, I've read through about 5 other books, and as always, I'm tinkering with a bunch of Raspberry Pis!