# Looking for lag reduction methods **URL:** \ **Category:** Help\ **Created:** [March 25, 2025, 9:12pm UTC](https://forum.cursor.com/t/looking-for-lag-reduction-methods/69884 "2025-03-25T21:12:00Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![oscurritos](https://avatars.discourse-cdn.com/v4/letter/o/35a633/32.png) [@oscurritos](https://forum.cursor.com/u/oscurritos)\ **Post date:** [March 25, 2025, 9:12pm UTC](https://forum.cursor.com/t/looking-for-lag-reduction-methods/69884/1 "2025-03-25T21:12:00Z")
So, I love cursor, and honestly for me all but a few bugs are fixed, but what’s stopping me from using it is the HORRIBLE Lag. I’m talking I can’t even put in a few rules when I was trying to because it’s so laggy, I can’t type anywhere, can’t click because it’s always frozen. TL;DR: any ways to fix this awful lag and delay other than deleting conversations? ---
**Author:** ![deanrie](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/deanrie/32/1263_2.png) [@deanrie](https://forum.cursor.com/u/deanrie)\ **Post date:** [March 26, 2025, 11:05am UTC](https://forum.cursor.com/t/looking-for-lag-reduction-methods/69884/2 "2025-03-26T11:05:32Z")
Hey, is this happening in all projects? ---
**Author:** ![oscurritos](https://avatars.discourse-cdn.com/v4/letter/o/35a633/32.png) [@oscurritos](https://forum.cursor.com/u/oscurritos)\ **Post date:** [March 27, 2025, 2:31am UTC](https://forum.cursor.com/t/looking-for-lag-reduction-methods/69884/3 "2025-03-27T02:31:22Z")
I only have one project, so I assume no. But I literally cannot access cursor most of the time, I cannot use it right now other than to simply type in a prompt and hit enter, and even then it’s taking a minute just to be able to type it in and press enter, often times even longer due to crashes. I’m paying 20 dollars a month for this, I know it’s buggy, but I should at least be able to use it which I’m unable to currently. It’s often restarting with the ‘oom’ error. The only problem right now is the horrible lag and crashes. Please, please come up with some solutions at the very least, I’ve worked on this project for months so I can’t simply abandon it. Here’s the error codes in toggle developer tools: Uncaught Error: [composer] No composer data handle found at Co.updateComposerDataSetStore (workbench.desktop.main.js:596:38154) at workbench.desktop.main.js:50:87377 at aN (workbench.desktop.main.js:50:87131) at s.value (workbench.desktop.main.js:50:87366) at Osi.triggerScrollToBottom (workbench.desktop.main.js:2925:15014) at workbench.desktop.main.js:2925:10297 workbench.desktop.main.js:2285 [Extension Host] (node:25872) ExperimentalWarning: Use `importAttributes` instead of `importAssertions` (Use `Cursor --trace-warnings ...` to show where the warning was created) qEr @ workbench.desktop.main.js:2285 workbench.desktop.main.js:4808 Writing file file:///c%3A/Users/jj%20haenlein/.cursor/extensions/ms-vscode-remote.remote-wsl-0.81.8/dist/node/wslDaemon.js workbench.desktop.main.js:4808 Writing file file:///c%3A/Users/jj%20haenlein/.cursor/extensions/ms-vscode-remote.remote-wsl-0.81.8/dist/node/extension.js workbench.desktop.main.js:2876 Overwriting grammar scope name to file mapping for scope source.dart. Old grammar file: file:///c%3A/Users/jj%20haenlein/AppData/Local/Programs/cursor/resources/app/extensions/dart/syntaxes/dart.tmLanguage.json. New grammar file: file:///c%3A/Users/jj%20haenlein/.cursor/extensions/dart-code.dart-code-3.106.0/syntaxes/dart.json register @ workbench.desktop.main.js:2876 workbench.desktop.main.js:2876 Overwriting grammar scope name to file mapping for scope source.cmake. Old grammar file: file:///c%3A/Users/jj%20haenlein/.cursor/extensions/ms-vscode.cmake-tools-1.20.53/syntaxes/CMake.tmLanguage. New grammar file: file:///c%3A/Users/jj%20haenlein/.cursor/extensions/twxs.cmake-0.0.17/syntaxes/CMake.tmLanguage register @ workbench.desktop.main.js:2876 workbench.desktop.main.js:2876 Overwriting grammar scope name to file mapping for scope source.cmakecache. Old grammar file: file:///c%3A/Users/jj%20haenlein/.cursor/extensions/ms-vscode.cmake-tools-1.20.53/syntaxes/CMakeCache.tmLanguage. New grammar file: file:///c%3A/Users/jj%20haenlein/.cursor/extensions/twxs.cmake-0.0.17/syntaxes/CMakeCache.tmLanguage register @ workbench.desktop.main.js:2876 workbench.desktop.main.js:4996 Extension Host textMateTokenizationWorker.workerMain.js:31 Overwriting grammar scope name to file mapping for scope source.dart. Old grammar file: file:///c%3A/Users/jj%20haenlein/AppData/Local/Programs/cursor/resources/app/extensions/dart/syntaxes/dart.tmLanguage.json. New grammar file: file:///c%3A/Users/jj%20haenlein/.cursor/extensions/dart-code.dart-code-3.106.0/syntaxes/dart.json register @ textMateTokenizationWorker.workerMain.js:31 textMateTokenizationWorker.workerMain.js:31 Overwriting grammar scope name to file mapping for scope source.cmake. Old grammar file: file:///c%3A/Users/jj%20haenlein/.cursor/extensions/ms-vscode.cmake-tools-1.20.53/syntaxes/CMake.tmLanguage. New grammar file: file:///c%3A/Users/jj%20haenlein/.cursor/extensions/twxs.cmake-0.0.17/syntaxes/CMake.tmLanguage register @ textMateTokenizationWorker.workerMain.js:31 textMateTokenizationWorker.workerMain.js:31 Overwriting grammar scope name to file mapping for scope source.cmakecache. Old grammar file: file:///c%3A/Users/jj%20haenlein/.cursor/extensions/ms-vscode.cmake-tools-1.20.53/syntaxes/CMakeCache.tmLanguage. New grammar file: file:///c%3A/Users/jj%20haenlein/.cursor/extensions/twxs.cmake-0.0.17/syntaxes/CMakeCache.tmLanguage register @ textMateTokenizationWorker.workerMain.js:31 workbench.desktop.main.js:4808 Writing file file:///c%3A/Users/jj%20haenlein/.cursor/extensions/ms-vscode-remote.remote-wsl-0.81.8/dist/node/wslDaemon.js workbench.desktop.main.js:4808 Writing file file:///c%3A/Users/jj%20haenlein/.cursor/extensions/ms-vscode-remote.remote-wsl-0.81.8/dist/node/extension.js workbench.desktop.main.js:5014 Error refreshing background composers ConnectError: [unauthenticated] Error at t (workbench.desktop.main.js:2319:114067) at async Object.listBackgroundComposers (workbench.desktop.main.js:97:15148) at async Nki.refreshBackgroundComposers (workbench.desktop.main.js:5014:5837) ---
**Author:** ![deanrie](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/deanrie/32/1263_2.png) [@deanrie](https://forum.cursor.com/u/deanrie)\ **Post date:** [March 27, 2025, 7:37am UTC](https://forum.cursor.com/t/looking-for-lag-reduction-methods/69884/4 "2025-03-27T07:37:59Z")
Please check this: > [@\[0.47.5\]The UI is very slow so that I can not work with it!](https://forum.cursor.com/t/0-47-5-the-ui-is-very-slow-so-that-i-can-not-work-with-it/64743/7): > > I think this issue is related to a large amount of chat history in your project. You can try renaming your project and opening it. If that helps, then the cause is clear. If your chat history is important to you, you can try exporting it using this extension: ---
**Author:** ![system](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/system/32/99069_2.png) [@system](https://forum.cursor.com/u/system)\ **Post date:** [June 18, 2026, 10:35am UTC](https://forum.cursor.com/t/looking-for-lag-reduction-methods/69884/5 "2026-06-18T10:35:39Z")
Closed on June 18, 2026, 10:35am UTC