user.type helper is slow even with delay 0

Description: Version: 14.0.0-beta.11

Tested two variants for 100 characters text. I use default config with delay=0

1. userEvent.click and userEvent.paste- 70ms~

await user.click(screen.getByLabelText(/label/));
await user.paste(textMock);

1. userEvent.type - 1500ms~

await user.type(screen.getByLabelText(/label/), textMock);

keypress - seems to be slow, because there is a sync loop without Promise.all() and each iteration has 10-15ms

This fragment of code is synchronous and slow

 if (unpreventedDefault && hasKeyPress(keyDef, config)) {
        await keypress(keyDef, getCurrentElement, config)
}

[ph-fritsche]

I’ll close this issue, as it lacks a reproduction example.

This looks like this is a problem with the environment. When we await, we allow other code to run in between - the next microtask with delay: null or the next macrotask between actions with delay: 0. It might be the DOM implementation, the event handlers or any other code on the event loop causing the excessive execution time.

[ph-fritsche]

This is not true…

Which part is not true? There is no reproduction showing any problem with our implementation - neither on this issue nor on the other one which this one is a duplicate of.

If you can create a reproduction example that showcases a problem on our end, I’ll gladly reopen.