[papsosouid]

"I was thinking about switching to fad software X" is generally not a good line of thought. Why do you want to switch? Node.js doesn't offer parallelism, so it is obviously not a good choice for your app.

And "threads" is two things. There's programming in a threaded style, and there's using native operating system threads. They don't have to go together. For example, if you use a green thread library, you end up with the exact same benefits and limitations as an event loop, but with simpler, easier to understand code. A really good thread library could then handle multiplexing green threads over OS threads to get you parallelism too (see haskell).