[collyw]

It doesn't always matter if your application only has a handful of users (plenty of internal applications) and defaults works at a reasonable speed. Also there are plenty of scripts that need to be run once and once only to get data from one place to another. Optimizing for performance then is pretty pointless.

[legedemon]

Nope. I happen to be a product manager for one of such internal applications with around 60 users. This can be considered as a handful of users when compared to the internet scale. Getting the product adopted even for such a small group was a big pain. The primary complaint - it is slow! After two rounds of performance optimizations, the adoption velocity for new features has increased 10x.