I'm interested to see at what point the speedup happens. In other words, is offloading static files faster because:

-Node has more cycles to compute things?

-The server node's on has less contention to deal with (disk, network)?

-Putting statics on another server allows the browser more simultaneous connections when loading the page, so it loads faster by default?

"Don't use Node.js for static assets" is an interesting observation but I'd like to know exactly why.