[BUG] delay in autocomplete with WSL1

[salleq]

Describe the bug

When using autocomplete (tab) in WSL1, there's a noticeable delay (0.5-2s) before showing autocomplete results be it a git, ls, dir, whatever.

I've seen this on two different installations of WSL1, with Ubuntu and Debian at least.
I also tried fzf-tab-completion plugin instead of this and it didn't produce the same issue. Sorry, I don't know how different these two plugins are as both otherwise seem to work similarly for my needs.

I can make sure:

• [ X] I am using the latest version of fzf-tab
• [ X] this is the minimal zshrc which can reproduce this bug
• [X ] fzf-tab is loaded after compinit
• [X ] fzf-tab is loaded after plugins which will wrap Tab, like junegunn/fzf/completion.zsh
• fzf-tab is loaded before zsh-autosuggestions, zsh-syntax-highlighting and fast-syntax-highlighting.

To Reproduce

Steps to reproduce the behavior:

1. Type a command
2. Press Tab
3. notice a delay before results

Expected behavior

minimal delay after pressing tab

Environment:

• OS: Debian 12 on WSL (ARM Windows on Parallels on Mac but happens also on x86 Windows)
• zsh version: zsh 5.9 (aarch64-unknown-linux-gnu)

Minimal zshrc

autoload -U compinit; compinit
source ~/.oh-my-zsh/custom/plugins/fzf-tab/fzf-tab.zsh
[ -f ~/.fzf.zsh ] && source ~/.fzf.zsh

Log

C-x does nothing - perhaps because of WSL? so I cannot get a debug log.