bug: superdoc unresponsive on document with lot of tracked changes

[jojojoseph94]

Type

• Bug

Description

I'm trying to edit the attached docx file using superdoc. Uploading the file makes the component and the website unresponsive. Once the document loads completely, it is also very slow to scroll, edit and add comments and make changes.

 It is also very hard to make sense of comment threads in stacked view.

Current Behavior

Expected Behavior

I should be able to edit the document without much delay.

Steps to Reproduce

1. Upload attached document to https://www.superdoc.dev/

output_anonymized.docx

2. See the warning message

SuperDoc Version

1.4.0

Browser & Version

Firefox 145.0

OS

macOS Tahoe Version 26.2

Additional Context

I'm seeing the same issue in both chrome and firefox

Checklist

• Tested with latest version
• Checked for duplicates
• Added relevant labels

[linear]

IT-276