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Performance plugin from the WordPress Performance Group, which is a collection of standalone performance modules.

Results 324 performance issues
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Create a basic queue admin screen to display a list of all jobs. This will make use of the default taxonomy admin screen but made read only by removing the...

[Plugin] Regenerate Existing Images
[Plugin] Performance Lab

Create a new `perflab_background_process_next_batch` function to handle subsequent requests to process additional job batches. This function is created in the module file called `modules/images/regenerate-existing-images/background-process.php` ## Acceptance Criteria - Function accepts...

[Plugin] Regenerate Existing Images
[Plugin] Performance Lab

Create a new `Perflab_Background_Process::memory_exceeded` method to calculate and return the memory used within the background process. This functions checks the total memory used is 90% of the servers memory limit....

[Plugin] Regenerate Existing Images
[Plugin] Performance Lab

iFrames, especially those that load rich media formats like Youtube and Vimeo have generally been loaded and rendered on page load. This can often constitute a negative impact to page...

Extracted from https://github.com/WordPress/performance/issues/36#issuecomment-999106773: Consider supporting "per blog" flushing in multisite environments. Object Cache Pro [has a similar feature](https://objectcache.pro/docs/multisite-networks/) that allows flushing per blog and can even include global/shared groups, such...

[Type] Enhancement
Needs Discussion

Currently, the Performance features screen makes individual `plugin_information` queries to the WordPress.org API, which is rather inefficient, especially the more plugins we have. We can enhance this by instead using...

[Type] Enhancement
Good First Issue
[Plugin] Performance Lab

## Bug Description I just tried to convert a existing site to webp with performance lab + modern image. ## Steps to reproduce 1. Install and enable both plugins 2....

[Type] Bug

## Bug Description While i test something i found that the uploaded image didn't add original image extension( `-jpeg` ) in the sub-sizes but it added in full size image....

[Type] Bug
[Plugin] Modern Image Formats

Modern Image Formats 2.2.0 does not support converting uploaded WebP files to AVIF

[Type] Enhancement
[Plugin] Modern Image Formats

Originally in https://github.com/WordPress/performance/issues/1494#issuecomment-2305825246. I discovered on my blog that I had a very old URL Metric from before the XPath indices were fixed to be 1-based instead of 0-based (#1191)....

[Type] Bug
[Plugin] Optimization Detective