[Bug] New page text is very laggy

### Bug Description

I'm copying/pasting all my OneNote sections to AppFlowy.
For some unknown reasons, after some documents were created, now I cannot rely on the "New page" button anymore: as shown in the video, the text input is very unresponsive/laggy in the 'new page' while it works perfectly if I create a new document in one of the sections I've already made.

https://github.com/AppFlowy-IO/AppFlowy/assets/1898283/932883da-aeee-4021-ae68-70e51f23a073

Clearing the cache doesn't solve the issue.

### How to Reproduce

It's not easy to define what's trigger the problem.
I have a workspace shared with another user. The workspace contains 50+ documents.
Click on 'New Page' and try to type text into this new document.

### Expected Behavior

The new page shall be reactive as the others.

### Operating System

Ubuntu 22.04

### AppFlowy Version(s)

Snap 0.6.2 (edge)

### Screenshots

_No response_

### Additional Context

I'm facing the same error with the DEB version.