[data grid] Scroll performance regression in v8 vs. v7

[lauri865]

Steps to reproduce

Scrubbing scrollbar has become much slower to update for some reason.

v7 docs:

v7.mp4

v8 docs:

v8.mp4

Not sure what's causing it at this point. FWIW, we're not witnessing it with v7 in React 19.

Introduced in v8.0.0-alpha.5 it seems: v8.0.0-alpha.4...v8.0.0-alpha.5.

Current behavior

No response

Expected behavior

No response

Context

No response

Your environment

npx @mui/envinfo

  Don't forget to mention which browser you used.
  Output from `npx @mui/envinfo` goes here.

Search keywords: scroll performance

[lauri865]

Actually seems to have started from here: #15144
Strangely, I cannot reproduce this in dev, only when I build for production.

💡 Learned something new about Github that I've been missing, to check pull requests in the order of merging is actually possible:
https://github.com/mui/mui-x/pulse#merged-pull-requests

[lauri865]

Seems to be Next15 issue. Can't reproduce with vanilla react app in either React 18 or 19, resolves when downgrading to Next@14.

[lauri865]

It seems that the issue is that the docs is built with production profiler, which adds overhead. For whatever reason the overhead is higher in Next15, but there was always some overhead.

[github-actions]

This issue has been closed. If you have a similar problem but not exactly the same, please open a new issue.
Now, if you have additional information related to this issue or things that could help future readers, feel free to leave a comment.

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