This video outline the performance different between a number of different servers, or APIs. The tests are carried out using 2 different types, Autocannon (NPM) and DDoS tool. It then measures how many requests each API can handler per second. It also measures the breaking point of each server under a DDoS stress.
NOTE:
The objective of the video was to see how much you can get off your application out of the box before adding middleware and database interactions to it. This does not simulate a real world application. It only serves to shows what framework performances better out the box and has less overhead. The objective is the framework, not the environment or machine it's running on, not the choice of middleware and not the ORM, or type of database. Hence the reason why these things are not included in the video.
APIs used are built using:
Express.js
Fastify (Nodejs)
NET Core 3.1
Restify
Flask (Python)