I was told that raw http package is much faster than the frameworks. But I don't really trust such claims.
So I make a test on how performance changes on http raw packages and frameworks.
Here is the test code, so you can get your own result.

You will see, in my test, as the url getting complicated, the performance difference is getting smaller.

The detailed result is as follows:

Node.js framework Benchmarks

root url "/"

the averaged results:

visual differences:

none root url access "/url"

the averaged results:

visual differences:

parameterized url "/user/:id"

the averaged results:

visual differences: