Fastify is much faster than Express, achieving almost two times better benchmarks results. So how they’re achieving this while keeping express as core (nestjs)?
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Can you share what benchmark results you're looking at that show Nest having benchmarks at two times better than express? [Kamil posts the original benchmarks and explanations as to why express is faster here](https://stackoverflow.com/questions/47733390/nestjs-vs-plain-express-performance?rq=1) – Jay McDoniel Jun 21 '21 at 05:38
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From Performance (Fastify) in the NestJS docs:
"A fair question is why does Nest use Express as the default HTTP provider? The reason is that Express is widely-used, well-known, and has an enormous set of compatible middleware, which is available to Nest users out-of-the-box."
If you prefer high performance, you can follow that docs page to switch to the Fastify framework adapter.
mouche
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