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cortig's avatar
cortig
Super Contributor
3 days ago

Electron framework leading to Tahoe slowdowns

Recent discussions have identified an issue with the electron framework leading to significant slowdowns in Mac OS 26 (Tahoe). 

You can see a good description of the problem here:https://mjtsai.com/blog/2025/09/30/electron-apps-causing-system-wide-lag-on-tahoe/

And this page offers scripts to identify apps that use the _cornerMask to draw drop shadows for windows in Electron apps (which triggers the slowdowns through WindowServer): https://gist.github.com/tkafka/e3eb63a5ec448e9be6701bfd1f1b1e58#file-detect-electron-apps-with-macos-lag-sh

I played around with he scripts and it looks like 1Password 8.11.12 is one of the affected Electron apps…

I'd be great to tweak the embedded framework (or use one of the newer, corrected frameworks) to eliminate the issue in 1Password :-)

macos

4 Replies

  • cortig's avatar
    cortig
    Super Contributor
    3 days ago

    Thanks for the information (and macOS is up to date on my Mac indeed).

    I just enabled nightly, bt it doesn't look like the present one incorporates the fix/workaround. It's still using _cornerMask in the Electron framework 37.3.1.

    I'll keep my eyes open for new builds though :-)

    • 1P_SimonH's avatar
      1P_SimonH
      Icon for Community Manager rankCommunity Manager
      3 days ago

      Oops, sorry, cortig! I think it hasn't actually hit the publicly-available nightly yet. I've updated my response so I don't throw off anyone else. We are working on this, though!

  • 1P_SimonH's avatar
    1P_SimonH
    Icon for Community Manager rankCommunity Manager
    3 days ago

    Hi cortig​ 👋

    This is definitely on our radar and we'll be moving to a newer version of Electron! If you haven't already, I'd also recommend updating to Tahoe 26.0.1, as it fixes an autofill bug that was causing some performance issues.

    • MitoWorld's avatar
      MitoWorld
      New Contributor
      13 hours ago

      Looking forward for the fix soon! :) Thanks Simon!