Cursor - Auto Mode Too Slow

Support Bug Reports
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1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

In Agent or Ask mode, on Auto, Cursor 3.0.13 has been incredibly slow since 5 pm (UTC) last night. It seems there’s a problem with Composer 2.
When I switch to other models from Auto, the process completes quickly.

Steps to Reproduce

It doesn’t actually create a bug. It runs incredibly slow in Auto mode.

Operating System

Windows 10/11

Version Information

Version: 3.0.13 (user setup)
VSCode Version: 1.105.1
Commit: 48a15759f53cd5fc9b5c20936ad7d79847d914b0
Date: 2026-04-07T03:05:17.114Z
Layout: editor
Build Type: Stable
Release Track: Default
Electron: 39.8.1
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.26200

For AI issues: which model did you use?

Auto-Composer 2

Does this stop you from using Cursor

Yes - Cursor is unusable

5

Hey, this is a known issue. Auto mode goes through extra server-side routing steps that don’t happen when you pick a model manually. Right now the router sometimes sends the request to a higher-latency provider, so Auto can feel noticeably slower.

The team is aware. For now, the workaround is what you already found, pick a model manually instead of Auto.

If you want to help us debug your specific case, send a Request ID from one of the slow Auto requests (top right in the chat > Copy Request ID).

Also, I noticed you have a duplicate of this post here: Composer 2 Performance Slow Down. I’ll merge them into one thread.

Let me know if you have any questions.

6

A post was merged into an existing topic: Composer 2 Performance Slow Down