The vast majority of slow websites I've seen written with RoR were slow because ...

ajmurmann on Oct 18, 2017 | parent | context | favorite | on: Why we switched from Python to Go

The vast majority of slow websites I've seen written with RoR were slow because the DB later want optimised. 1+n query problems, pulling way more data than needed and then processing it in Ruby, missing indices etc.

yxhuvud on Oct 18, 2017 [–]

Either that or by slow views. URL generation is often a noticable culprit.