The cursor is running very slowly. Tasks that used to take 2 to 3 minutes to complete now often time out and feel laggy

Support Bug Reports
1

For the past week, using Cursor has been a nightmare—it’s unbearably slow, laggy, and times out constantly, crippling my workflow. As a paying user, this is completely unacceptable. It’s even more frustrating that this critical issue doesn’t appear to be officially recognized or prioritized by the Cursor team.

1 Like
3

Hey, thanks for the report. I’ll need a bit more info to troubleshoot:

Required info:

  1. Cursor version (Help > About Cursor > Copy)
  2. OS
  3. What exactly is slow: chat, agent, just typing, scrolling?
  4. Cursor Settings > Network > Run Diagnostics, please share the results

Diagnostic steps:

  1. Process Explorer: CMD/CTRL + Shift + P > Developer: Open Process Explorer. Which processes are using CPU or memory when the lag starts?

  2. Extension Monitor: Settings > Application > Experimental > Extension Monitor Enabled, then CMD/CTRL + Shift + P > Developer: Open Extension Monitor. Maybe an extension is putting load on the system?

  3. Quick test: Try running cursor --disable-extensions from the terminal. Do the lags still happen?

Let me know what you find from these checks and it’ll be clearer what’s slowing things down.

4

had the same today, especially with gemini 3 pro

what worked was manually hitting /summerize

then it was speedy again

though it really started slowing down just before i hit the new 1000 tool call limit (which is dope conisdering it was 20 something some eons ago ^^)

5

Hi, Thanks For your help.

my Agent is running extremely slow.
In Auto mode, normally when I ask it to write code based on my keywords, it should start thinking and then begin coding. But now it gets stuck at the “planning next moves” stage. After a long wait, it times out and shows a “VPN xxx…” error message. This is significantly reducing our development efficiency.

The issue is not hardware lag, but a slow and unresponsive Agent. Specifically in Auto mode, it gets stuck at “planning next moves” and eventually times out (often with a VPN-related error message). This is severely hindering development productivity.

Version: 2.3.40 (system setup)
VSCode Version: 1.105.1
Commit: 230922a103262db3487b753c8d1e0a7111c2d780
Date: 2026-01-16T04:42:17.525Z
Electron: 37.7.0Chromium: 138.0.7204.251
Node.js: 22.20.0V8: 13.8.258.32-electron.0
OS: Windows_NT x64 10.0.19045
6

Hey, the VPN error when it’s stuck on “planning next moves” is usually caused by a few things. I’ll need a bit more info to pinpoint it:

Really important to check:

  • Is Git installed? Go to Cursor Settings > Network > Run Diagnostics and share a screenshot of the results.
  • Are you using a VPN or a corporate network?
  • What’s the exact text of the “VPN xxx…” error?

Try these workarounds:

  1. Disable HTTP/2 (often fixes VPN-related timeouts):

    • Open settings.json (Ctrl+Shift+P > “Preferences: Open User Settings JSON”)
    • Add: "cursor.general.disableHttp2": true
    • Restart Cursor

  2. If Git isn’t installed, the Agent can’t run:

    • Download Redirecting…
    • During install, select “Add Git to PATH”
    • Fully restart Cursor
    • Check in cmd: git --version

  3. Check older chats. Do they work? If yes, it might be an indexing issue:

    • Cursor Settings > Indexing & Docs
    • Try temporarily disabling “Index New Folders” and “Index Repositories for Instant Grep”

  4. If you’re on VPN, try turning it off just for a quick test

Similar issues are discussed here:

Share the diagnostics results and tell me if any workaround helped.

7

I have followed the method but it is still very slow, often taking more than 5 or 10 minutes.

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8

It’s almost impossible to use the cursor, and it feels like the IDE is completely useless. The experience is vastly different from what I had in 2025

9

To pinpoint the issue, I need some diagnostic info from your previous message:

  1. Network Diagnostics: Cursor Settings > Network > Run Diagnostics, please share a screenshot of the results
  2. Request ID: When the Agent gets stuck, copy the Request ID (chat menu top-right > Copy Request ID)
  3. Git: In cmd, run git --version
  4. HTTP/2: Check your settings.json for "cursor.general.disableHttp2": true

Also try this:

Switch the model: Gemini 3 Flash may work worse over a VPN

  • Try Claude 4.5 Sonnet or GPT-5
  • See if it’s faster

Simplify the task: If the Agent is analyzing large logs

  • Share a smaller amount of data
  • Or make your question more specific so the Agent doesn’t do a full analysis

Without diagnostic info, it’s hard to tell the exact cause. It could be your VPN, the model, or the amount of data.