The input speed of ConPTY / ConHost is very slow.

Windows Terminal version

1.12.10982.0

Windows build number

10.0.19043.0

Other Software

https://github.com/UserExistsError/conpty v0.1.0

https://github.com/trzsz/trzsz-go v0.1.9

Steps to reproduce

1. Install trzsz-go, download trzsz_0.1.9_windows_x86_64.zip and unzip, you will get trzsz.exe, trz.exe and tsz.exe.

2. open cmd

3. execute trzsz cmd

4. execute trz, a dialog will pop up.

5. choose a file in the dialog, the file will be uploaded to the current directory.

Expected Behavior

The trzsz create a ConPTY process ( cmd ), and send the file content as keystrokes.

The trz receive the file content and save to the current directory.

The upload speed should be 2MB/s at least. Same as the download speed.

Actual Behavior

The upload speed is only about 128KB/s. Looks like the keystrokes are speed limited.