Because that's a docker container on a "busy" server (mostly WordPress wasting cycles generating pages for some bots that really have to visit my blog over and over and over and over)
you might want to look into getting wordpress to generate static pages and only deliver the static html.
Overall using bloging tools that generate static pages is better than constantly requesting DB and dynamically compiling each page every time there is a request
Yeah it's a long time that I wanted to migrate to Hugo
The main issue is that a decade ago or so, I hosted a vibrant forum with the stupidest platform ever, bbpress. So my WordPress has something like 30k pages...