One of the things that I adore about the Swift community is the genuine desire to understand and analyse performance issues. This entire thread about Vapor's performance could have turned into a finger-pointing exercise, but instead a bunch of gracious, intelligent folk worked to understand the issues in detail: https://forums.swift.org/t/standard-vapor-website-drops-1-5-of-requests-even-at-concurrency-of-100/71583
