Performance Chat Summary: 4 June 2024

Meeting agenda here and the full chat log is available and the full chat log is available beginning here on Slack.


  • Welcome to our new members of #core-performance
  • WordPress 6.6 beta 1 is today
  • Performance lab 3.2.0 release scheduled for June 6

Priority Items


  • WordPress performance Trac tickets
    • Current release (WP 6.6)
  • Performance Lab plugin (and other performance plugins)
    • Auto-Sizes for Lazy-Loaded Images
    • Embed Optimizer
    • Fetchpriority
    • Image Placeholders
    • Modern Image Formats
    • Optimization Detective
    • Performant Translations
    • Speculative Loading
  • Active priority projects

WordPress Performance Trac Tickets

Performance Lab Plugin (and other Performance Plugins)

Active Priority Projects

Improving the calculation of image size attributes

  • @mukesh27 has been working on improved image sizes algorithm
    • PR that ready for review:
      • PR #1250 – Initial implementation of improved image sizes algorithm
      • PR #1252 – Use correct sizes for small images

Web Worker Offloading

Optimized Autoloaded Options

  • @joemcgill now that we’ve included the Site Health check, I think we can update the dev note draft and then close out that project. I’ve been waiting on the doc release leads to get a process setup that we can add our dev note to.

Open Floor

Our next chat will be held on Tuesday, June 11, 2024 at 15:00 UTC in the #core-performance channel in Slack.

#core-performance, #performance, #performance-chat, #summary

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