Windows Alpha: Terminal feels very slow and laggy

[DeveloperPaul123]

Summary

Overall, the terminal in Zed feels very slow and laggy, especially while typing.

Description

I'm currently using pswh.exe with a very custom profile but the same behavior can be seen with powershell and Git bash.

Steps to trigger the problem:

1. Open the terminal
2. Attempt to try many characters very quickly
3. Note the delay in characters showing up in the terminal.

Expected Behavior:

There should not be lag - behavior should be similar to system terminal emulators (WezTerm, Alacritty, Windows Terminal and so on).

Actual Behavior:

The terminal is quite slow. Below is a demonstration of me typing many characters very quickly and then waiting for the text to show up.

zed_2025-08-29_12-21-14.mp4

Zed Version and System Specs

Zed: v0.201.5 (Zed)
OS: Windows 10.0.26100
Memory: 63.2 GiB
Architecture: x86_64
GPU: AMD Radeon RX 7900 XTX || AMD Corporation || Unknown Driver

[Phoenixmatrix]

I've hit a similar issue, on Windows 11 with an RTX 4080 and a i7 13700k.

Interestingly, I have my work lap-top, software wise fairly similar setup but obviously very different (weaker) hardware, and there's zero issue. So there's a conflict somewhere, but I can't figure out what does it. Lap-top, terminal is super responsive, everything works perfectly. Desktop, I can have 5-10 seconds sometimes between key strokes. Same shell setup, same dotfiles (WSL), etc. Happens both in WSL and Powershell on the slow machine.