[Wilem82]

Very fast compared to what? Certainly not to Rust, and that was a Rust conference. Anything with a VM, even if it has JIT, is slower than a systems-level programming language that got no runtime overhead. VMs are slow by its very nature, simply because there an additional layers and more work needs to be done. If she meant support for non-blocking IO, that got nothing to do with Nodejs, it's an OS-level feature that's been around for almost 20 years. JVM can use non-blocking IO, doesn't make JVM fast, it's still relatively slow due to being VM in the first place.