Comment by ndriscoll

My immediate reaction to seeing

> It is completely normal for web requests to need more than 5 milliseconds to run. If you’re in a still-normal range of needing 50 milliseconds to run, even these very slow frameworks are not going to be your problem.

Is that it apparently does make a huge difference. At least doing CRUD web stuff, my calibration for Scala (so pretty high-level functional code) is to expect under 1 ms of CPU-time per request. The only time I've ever seen something in the 50-100 ms range was when working with Laravel. 5 ms is what I'd expect as the total response time for e.g. a paginated API returning 100+ records with a bunch of optional filters.