Allmost “instant” support

I recently had a question, and I was answered almost immediately. As a bonus, I got a simple explanation of “how it works”.

The plugin was installed originally for me by the professional web-developer that helped me creating a “default site”, that I autonomously filled with contents. In a second stage, I asked him to optimise the performance; he installed Autoptimize (admittedly, together with WP Super Cache and Smush). I am not expert enough to judge the impact of any of these individually, but certainly the performance number increased!