I feel like most performance intensive nodejs modules drop down to c++ where real concurrency already exists. (e.g. sharp - https://sharp.pixelplumbing.com/api-utility#concurrency)
In all of them - JavaScript is mostly used for asynchronous programs, which are easily parallelizable. There's no reason not to want multi-threading.
In all of them - JavaScript is mostly used for asynchronous programs, which are easily parallelizable. There's no reason not to want multi-threading.