I have done some benchmarking comparing JS, WASM, and native C++ addon performance in Node.js: https://github.com/zandaqo/iswasmfast https://github.com/zandaqo/

I have done some benchmarking comparing JS, WASM, and native C++ addon performance in Node.js: https://github.com/zandaqo/iswasmfast https://github.com/zandaqo/iswasmfast From the look of it, in Node.js, WASM suffers less data exchange overhead while been decently close to performance of the native addons.