[Webkit-unassigned] [Bug 279492] New: Extremely sluggish animation on Safari TP

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=279492

            Bug ID: 279492
           Summary: Extremely sluggish animation on Safari TP
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: macOS 15
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Animations
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mic.gallego at gmail.com
                CC: graouts at apple.com

Created attachment 472521

  --> https://bugs.webkit.org/attachment.cgi?id=472521&action=review

Sluggish animation on Safari TP

Hi,

On latest Safari TP, we're experiencing an extremely slow performance on some animations.

To reproduce the issue:

1. Open this page: https://prestige-new-version.myshopify.com
2. Enter the password rewblo to enter into the site
3. Go to this page: https://prestige-new-version.myshopify.com/collections/all
4. Open a collapsible in the filter sidebar, and see how sluggish the animation is (Chrome, Firefox and Safari stable show a smooth animation)

You can see the attached video showing the sluggish animation on Safari TP.

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