Cursor UI STILL very laggy since 0.49

Bug Reports
1

Describe the Bug

Since updating to version 0.49 - 1.2.2, Cursor’s UI has become very laggy. When I switch between two Cursor windows, the one I switch to shows a light green loading bar for about a second and then freezes for 1–3 seconds before it becomes usable again. It also freezes occasionally while I’m typing a query. The UI lags very OFTEN. None of this happened in version 0.48.9.

In short, switching between two open Cursor windows causes a 1–3 second freeze, which didn’t happen in the previous version.

  1. It’s not my extensions. I don’t have any custom extensions installed.

  2. I opened process explorer and monitored. Nothing out of ordinary. No high CPU or RAM usage.

  3. I deleted “state.vscdb” and had cursor re-create it. It was good for a little bit but after 1 - 2 days it started lagging again.

If I install 0.48.9 again, Cursor works perfect with ZERO UI lags. But I can’t stay in that version forever.

Steps to Reproduce

Open two or three cursor windows. Run some queries on each window. Switch between each cursor window. Notice UI lag.

Screenshots / Screen Recordings

cursor3.png
cursor3.png502×196 5.06 KB

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.2.2 (user setup)
VSCode Version: 1.99.3
Commit: faa03b17cce93e8a80b7d62d57f5eda6bb6ab9f0
Date: 2025-07-07T06:19:13.016Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.26100

Does this stop you from using Cursor

Sometimes - I can sometimes use Cursor

1 Like
2

Hey, try this:

3

Okay, I’ve done just that. Uninstalled cursor, removed all those folders/files. Re-installed. It worked fine for maybe 5 - 10 minutes. But now the UI lag is back. It freezes for 3 - 5 seconds. Works fine for maybe 30 seconds - a minute. once again lags for 3 - 5 seconds.

4

I suggest doing that again and downloading v.1.2, v1.2.2 seems to have some quirks

5

I believe I’ve found the issue. Cursor is not lagging, Cursor is FREEZING MY ENTIRE PC. It keeps writing to state.vscdb. Then it creates, writes, and deletes state.vscdb-journal.

My Disk C:\ is constantly at 100% when Cursor is open.

What the heck is it even writing? How do I turn this off?

Now it’s absolutely not usable. It’s lagging every few seconds. Even more so than before.

6

I have the similar experience on Ubuntu 22.04.

I started having problems with version 1.2.2 a few days ago. Every few seconds during different UI interactions Cursor freezes on 2-3 sec.

Now I use 0.49.6 and it works quick like pure VS Code.

7

Any solution to this? I’m having the same issue on multiple computers…

8

Please try Cursor Settings > Beta > Update Access: Early Access

9

This fixed it for me. No lags so far on the latest early access version (1.44).

1 Like
10

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