I found http servers in deno to slower to start with approximately 4s delay on startup.
But the actual dev experience, ahh that was so much more light then node, that I didn't get the feeling of doing a project.
If you haven't tried deno yet, you must give it a try.
It is exceptionally helpful if you use typescript in your workflow.
And the addition of built in tools like a bundler and file watcher makes life easier.
And biggest feature being security, no implicit access.
Try deno today! Goto deno.land