Ain't nobody is going to compare performance against Erlang for numerical number crunch.
It was never built for that. It's not even a fair comparison.
It's like comparing a race car against a hybrid prius and saying the race car suck at mpg. They're built for different purposes.
Ilk implies as if Erlang is some crap flavor flav tech. It is not.
Erlang was made for concurrency.
NodeJS was made to solve for concurrency too.
And Erlang beats NodeJS hands down in concurrency.
The actor model is a much better model to do concurrency and preemptive scheduling is amazing. It's easier to mentally think about actor and the code isolation in each processes makes it much more cleaner, object oriented, quoted by Alan Kay himself.
NodeJS chose some existing language to do concurrency where as Erlang was created from the ground up to do concurrency. Hence the reason why it's VM is so amazing on top of the fact that concurrency constructs are first class and primitives.