Cursor 1.5.0 slow and often unresponsive

Bug Reports
1

Describe the Bug

Cursor 1.5.0 slow and often unresponsive

Steps to Reproduce

Any use allowed

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.5.0
VSCode Version: 1.99.3
Commit: 2947db30cb622263bb9302d7bd2c27a52e11db60
Date: 2025-08-20T01:48:01.613Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.6.0

Does this stop you from using Cursor

Yes - Cursor is unusable

2

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3

Hey, thanks for the report. Does this happen in all projects? Try opening another one or a blank Cursor window. Does the error still appear in that case? Also, try selecting “Don’t restore editors.”

4

I keep seeing this in my C++ project when using cmake-tools:

5

Could you try renaming your project temporarily and then open the same project again? The issue might be related to the chat history.

6

After clearing all user-data, still crashing

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7

Is this the CMake Tools extension? Try installing our extension, it has the same features.

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8
  1. In the .vscode/extensions.json path, “ms-vscode.cmake-tools” as recommendations is a company-wide standard.
  2. After using Anysphere’s C/C++ IntelliSense extension, I cannot see tools equivalent to CMake Tools and cannot quickly build C++ projects.

.vscode/extensions.json

{

// See https://go.microsoft.com/fwlink/?LinkId=827846 , for the documentation about the extensions.json format

“recommendations”: [

  "ms-vscode.cmake-tools", // https://github.com/microsoft/vscode-cmake-tools/blob/main/docs/README.md

  "llvm-vs-code-extensions.vscode-clangd",

  "vadimcn.vscode-lldb",

  "rogalmic.bash-debug" ,// macOS need \`brew install bash\`

  "alefragnani.Bookmarks"

\],

“unwantedRecommendations”: [

  "ms-vscode.cpptools", // Causes a large amount of disk space usage \~/Library/Caches/vscode-cpptools

  "ms-vscode.cpptools-themes",

\]

}

9

For C++ Extension cc @ravirahman

10

I found that I am using the same solution as the C++ Extension Package you mentioned. I have always combined it this way when using VSCode. Which is a completely different solution from cpptools. The new 1.5.1 version still crashes, not sure if it’s due to the extension or something else, and the CPU usage is very high.

12

Could you check Help > Open Process Explorer and post here a screenshot if the consumption is within an extension or within other IDE parts.

13

1.4.6 Everything is running smoothly

1 Like
14

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CMake tools Wait a long time and eventually Cursor crashes!

16

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