Where does the bug appear (feature/product)?
Cursor IDE
Describe the Bug
My cursor keeps lagging to the point where it becomes very frustrating. I had the same issue a few months ago, then it seemed to fix itself, but now it’s back and quite daunting.
Is there any solution or anything I can try on my side?
Steps to Reproduce
I’ve noticed it especially happens when I have processes running (like yarn dev and a server) alongside the chat. It’s nothing unusual or resource-heavy — just a website — and my Mac should be powerful enough to handle it. When opening a new file, typing, running processes, and keeping chat open — basically under normal intensive use — the cursor lag becomes noticeable. As I move between files, the CPU also seems to spike. In the Process Explorer, I can see the CPU is relatively low in Window [1], but at times it can reach as high as 250. But are not big files
Expected Behavior
No lag
Operating System
MacOS
Current Cursor Version (Menu → About Cursor → Copy)
Version: 1.4.5
VSCode Version: 1.99.3
Commit: af58d92614edb1f72bdd756615d131bf8dfa5290
Date: 2025-08-13T02:08:56.371Z
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
Sometimes - I can sometimes use Cursor