Slow streams over network connection on windows share

[nassau-t]

Version

v23.4.0

Platform

Microsoft Windows NT 10.0.19045.0 x64

Subsystem

streams

What steps will reproduce the bug?

const fs = require('node:fs');
const readline = require('node:readline');

const sourcePath = "G:\\file.txt"; // 700 MB text file with 547 characters long lines on a windows share
const targetPath = "G:\\file.txt.copy";

const myInterface = readline.createInterface({
  input: fs.createReadStream(sourcePath).setEncoding('binary')
});
fs.closeSync(fs.openSync(targetPath, 'w'));
const output = fs.createWriteStream(targetPath);
output.setDefaultEncoding('utf-8');

myInterface.on('line', function (line) {
  output.write(line);
});

myInterface.on('close', function (line) {
  output.end();
  console.log(`Saved!`); // In node, at about 3 or 4 MB over network it shows this "Saved!", but continues copying?!
});

How often does it reproduce? Is there a required condition?

every time

What is the expected behavior? Why is that the expected behavior?

Faster stream copy

What do you see instead?

On 1 GB ethernet connection over windows share, with node v23.4.0 -> 513 seconds . It seemed a lot to me, so I tried with Bun
Same connection and share, with bun 1.1.39 -> 13 seconds.
So node is about 39x (slower)

And it's also strange that at about 3 or 4 MB file.copy, node shows the "Saved!" message but continues copying.

Additional information

On local disk, node is a bit faster than bun.
So it seems that problem is over network connection