Not only that, but every time a page load happens. There is a cronjob that gets executed.

You can seperate the cronjob by executing it by duration ( a real cronjob), instead of executing it every page load.

Nginx vs properly configured apache makes little difference on for a small-to-medium site. What makes a difference is fastcgi caching, it's an important difference.

Oh? How big of a difference does that make? I'm not even sure what to measure? I can host 100 WP sites that generate a total of 100000 hits in a day using Apache requires X RAM and X Cores but using NGINX I could do that with only X RAM and R Cores? Did you find something like that? I'd love to squeeze more out of what I have if I can do it with NGNIX.

Thank you for mentioning this. I wish people understood this better.

Good tip! Added to the post