Performance Chat Summary: 22 October 2024


Meeting agenda here and the full chat log is available beginning here on Slack.
Announcements
- Welcome to our new members of #core-performance
- WordPress 6.7 RC1 is today, October 22, with RC 2 following on October 29
- Reminder due to daylight savings, this meeting will shift to 16:00 UTC from October 29
- WordPress 6.7 performance dev notes published:
- Announcing the new #core-performance-hosting channel where the Performance team have been invited to commence a discussion on initiatives [see Slack]
Priority Items
- WordPress performance Trac tickets
- Current release (6.7)
- Future releases
- Performance Lab plugin (and other performance plugins)
- Active priority projects
WordPress Performance Trac Tickets
- As it’s RC 1 today, anything we need to discuss there?
- Looking ahead, we already have 11 performance tickets lined up for 6.8
Performance Lab Plugin (and other Performance Plugins)
- Performance Lab plugin and the following performance plugins:
- @adamsilverstein created a PR to add Wappalyzer detection for the new Web Worker Offloading plugin – https://github.com/HTTPArchive/wappalyzer/pull/71 which was merged already
- @benni had a question to the plugins. LCP priorization. Sometimes the LCP element on a webpage is text that uses a web font included via CSS. In such cases, the text can only be rendered after the font has been loaded, which can delay the LCP, I think? Would it be possible for the ‘Optimization Detective‘ plugin to detect when the LCP element is text and automatically preload the font in the section to improve performance? Or maybe the ‘Image Prioritizer’ plugin could be renamed to ‘LCP Prioritizer’ and expanded to handle this optimization for text elements as well?
- @adamsilverstein advised this is covered in https://github.com/WordPress/performance/issues/1313
Active Priority Projects
- Improving the calculation of image sizes attributes (Joe)
- Enable client side modern image generation (Pascal)
- Enhance onboarding experience for Performance Lab (Felix)
Improving the calculation of image size attributes
- @mukesh27 As part of the improving the calculation of sizes work, I’ve started implementing the new approach to the existing work so we can easily update it with the latest changes. The PR will be open soon, but before that, https://github.com/WordPress/performance/pull/1623 needs to be merged to ensure we have the latest changes on the feature branch.
Enable Client Side Modern Image Generation
- @swissspidy just merged a GB PR yesterday & opened another one today, working on the next one
Enhance Onboarding Experience of Performance Lab Plugin
- @flixos90 No update, the only outcome for now was https://github.com/WordPress/performance/issues/1583, which is ready for development – and marked as “Good first issue”, so if you’re a new contributor and you see this, this may be a great issue to get started!
Open Floor
- n/a
Our next chat will be held on Tuesday, October 29, 2024 at 16:00 UTC in the #core-performance channel in Slack.


