I'm going nuts, because of Cursor doing slow cmd zsh macos

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1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

I’m going nuts because Cursor is doing a slow cmd-z in zsh on macOS.
I’m having the most powerful Mac in the world, but Cursor is thinking so long with the shell.
My system: MacBook Pro, Memory: 128GB, Chip: Apple M3 Max, OS: Tahoe 26.2
It was quicker back in the days. Please do something about it, please.

Steps to Reproduce

Start any shell commands, even if it’s simplies one: ls

Operating System

MacOS

Version Information

Version: 2.4.23 (Universal)
VSCode Version: 1.105.1
Commit: 379934e04d2b3290cf7aefa14560f942e4212920
Date: 2026-01-29T21:24:23.350Z
Build Type: Stable
Release Track: Default
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Darwin arm64 25.2.0

For AI issues: which model did you use?

composer

Does this stop you from using Cursor

No - Cursor works, but with this issue

3

it’s beacame so crazy slow…. I using Cursor like 4 months… right now it’s shame

4

Hey, thanks for the report. This looks like a terminal performance issue, I’ve seen a few similar cases.

First, let’s check a couple things:

Quick diagnostic:

  1. Run cursor --disable-extensions from your system terminal. Is it still slow?
  2. Open Activity Monitor, sort by CPU, and send a screenshot showing all Cursor processes
  3. Try turning off GPU acceleration for the terminal: Settings > search terminal.integrated.gpuAcceleration > set to off

Also helps to narrow it down:

  • Did this start after a specific update, or has it been happening for a while?
  • What extensions do you have installed?
  • Does your .zshrc run any heavy commands on startup (like ssh-add, nvm, conda, etc.)?
  • Is it slow right when the terminal opens, or only after certain actions?

A similar case was fixed in a Nightly build: Nightly 2.1.0-pre.34.patch.0 is very slow.

Let me know what you find. If the workarounds don’t help, I’ll pass it to the team with full details.