Depends on shell.
- zsh does this.
- bash doesn’t.
Try simply starting bash before paste.
bash
For permanent default shell change, see:
Default Interactive Shell
There might be a zsh setting for as indicated by pasting characters into terminal slow · Issue #568 · romkatv/powerlevel10k · GitHub.
Reported in Change default shell from bash to zsh by default? - #165 by Patrick just now so hopefully this can be fixed.