TanStack Table version

"@tanstack/react-table": "^8.21.3", "@tanstack/react-virtual": "^3.13.9",

Framework/Library version

"react": "^19.1.0", "react-dom": "^19.1.0"

Describe the bug and the steps to reproduce it

I have been trying to render the table with 3000 row and 3000 column, but when scrolling down most of the time the FPS drops drastically to 7~20FPS. You will notice this difference when 11-13 columns in the view, for fewer columns performance is decent

Your Minimal, Reproducible Example - (Sandbox Highly Recommended)

https://codesandbox.io/p/sandbox/3ksy3v

Screenshots or Videos (Optional)

Do you intend to try to help solve this bug with your own PR?

Maybe, I'll investigate and start debugging

Terms & Code of Conduct

• I agree to follow this project's Code of Conduct
• I understand that if my bug cannot be reliable reproduced in a debuggable environment, it will probably not be fixed and this issue may even be closed.