The code contains database calls that have to run, reads and writes. Processors are sophisticated, but if they (or rather, they and the os) were that smart, Wor

The code contains database calls that have to run, reads and writes. Processors are sophisticated, but if they (or rather, they and the os) were that smart, WordPress installations would be a lot faster by default. And maybe that's not surprising, think about it: the typical server does a lot of other things additionally to serving one specific WordPress site.