WebAssembly vs. Native Code: Performance Analysis (WASM 45% Slower)

Given that this paper is from so long ago, running new benchmarks on existing runtimes would be productive.

Being within the same order of magnitude is pretty impressive IMO, especially before 6 years' worth of performance improvements.

A lot has changed since this was published, you can’t trust these numbers at all.

True, that's from 2019. While benchmarks are rare, some actually claim near native speed

To be fair these (and similar) claims were already made when WASM was new.