`Response(Bun.file())` is slower than `Response(await Bun.file().text())`

[7f8ddd]

What version of Bun is running?

1.1.9-canary.1+4df387d59

What platform is your computer?

Linux 5.15.133.1-microsoft-standard-WSL2 x86_64 x86_64

What steps can reproduce the bug?

Bun.serve({
  port: 8080,
  async fetch(req: Request) {
    const file = Bun.file("test.css");
    // slower
    return new Response(file);
    // faster
    return new Response(await file.text(), {
      headers: {
        "content-length": file.size.toString(),
        "content-type": file.type,
      },
    });
  },
});

What is the expected behavior?

I would expect Bun.file() to be faster than using await Bun.file().text().

(Top test is Bun.file(), bottom is Bun.file().text())

What do you see instead?

It can be as much as 3ms faster, which is a pretty big difference.