Source: trust me bro<p>The key paragraph:<p>> After optimizations, the Rust FaaS runtime ended up being >70% faster while using >90% less memory than our reference Node.js implementation. But the key is ‘after optimizations’, the initial implementation was slower.<p>This article is "Poorly written Rust performed slower than Javascript". Which isn't news.
Programmers have been bickering for literally decades about X versus Y, and whether scripting is really programming or just pretend programming, et cetera. Pro tip: The language isn't as important as the compiler or interpreter. You can write an interpreter to run C as a script. You can compile Javascript. You can write an interpreter to run a usally compiled language into an interpreted language, and vice versa.