Vscode extension debugging extreamly slow

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Use cursor to launch a extension host and debug extension code is extreamly slow when doing step operations. when the stepping is stucked , it will crash the extension host after 3 seconds.

Steps to Reproduce

laucnh any vscode extension project then hit a breakpoint.

Expected Behavior

same performace as vscode.

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.7.54 (user setup)
VSCode Version: 1.99.3
Commit: 5c17eb2968a37f66bc6662f48d6356a100b67be0
Date: 2025-10-21T19:07:38.476Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.19045

have tried latest version , and got same result.

For AI issues: which model did you use?

none

For AI issues: add Request ID with privacy disabled

none

Does this stop you from using Cursor

Yes - Cursor is unusable

Vscode extension debugging performance
3

hi @Camork we are working on new version release that will update also VSCode base which should help resolve your issue.

4

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