Lag and High GPU Usage in macOS Tahoe

[pzgz]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Do you have a plan to fix this issue?

Shamelectron - Electron Apps macOS Tahoe GPU Performance Tracker

Steps to Reproduce

open cursor with macos tahoe, watch the gpu usage

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.7.43
VSCode Version: 1.99.3
Commit: df279210b53cf4686036054b15400aa2fe06d6d0
Date: 2025-10-10T04:21:47.663Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Darwin arm64 25.1.0

Does this stop you from using Cursor

No - Cursor works, but with this issue

[deanrie]

Hey, thanks for the report. The shamelectron issue you linked is a known Electron bug on macOS Sequoia/Tahoe that can cause high GPU usage across Electron apps.

To confirm it’s that specific issue and not something else, please share:

1. A Process Explorer screenshot: Cmd + Shift + P → “Developer: Open Process Explorer”

2. Actual GPU usage (%) from Activity Monitor
3. Whether the issue persists with extensions disabled, launch with: cursor --disable-extensions

Also try disabling GPU acceleration when launching Cursor:
cursor --disable-gpu

If it turns out to be the upstream Electron bug, resolving it will likely require an Electron version update on our side. Your diagnostics will help us confirm and prioritize a fix.

[pzgz]

If you checked the link and the issue linked, yeah, it’s a known electron bug, and it has been fixed already in upstream if you checked the links….

Just being curios, is there a plan t fix this issue. If any developers of you team (or AI), simply checked the linked issue and the changes to fixed the issue, the fixes should be simple enough to be understood…

[oneartur]

as basically everyone with tahoe has this issue, when is a fix planned?

[deanrie]

Hey, we’re working on this.

[cmer]

Is there a rough ETA on this? It has been very disruptive. Thank you!

[Avarayr1]

Cursor Nightly (1.9.0-pre.1.patch.0 and up) contains a hotfix that fixes this issue without disabling shadows.

Cursor Nightly is now marked as fixed on Shamelectron.

As of now the fix is gated to MacOS 26.0.0 and 26.0.1, those on 26.1 beta will receive this fix possibly tomorrow