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7 2026
This plugin is a must have on the live website. The performance improvement is very much noticeable.
11 2026
4
been using a few of the plugins and metrics for testing and scaling, been using some of the plugins noted there on some production sites, but I do advise on never installing the plugins that require optimization detective.
let’s hope they make it to core fast!
15 2026
I have tested this plugin on a few sites and it provides some useful performance features that are helpful for optimization and experimentation. The modular approach is nice and makes it easy to enable or disable specific options. However, the interface and documentation could be improved for better clarity, especially for non-technical users. Overall, its a solid plugin with potential, but still needs refinement for a smoother production workflow.
6 2026
Performance Lab is the gateway to the future of WordPress. These tools are crucial for anyone serious about site speed, Core Web Vitals, and modern image formats.
I have personally translated and reviewed 100% of the strings for the entire Performance Lab ecosystem, including all standalone plugins (WebP Uploads, Speculation Rules, View Transitions, etc.) and their respective Readme files.
As the PTE (Translation Editor), Ive ensured that complex technical terms are translated accurately to help the Persian WordPress community implement these performance enhancements with ease.
Kudos to the performance team for these high-quality tools!
Best regards, @saeidafshari
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20 2025
2
Where’s lthe dev team
Plugin UI could have been improved..
“ Performance Lab ( )” . .
![[]](https://ps.w.org/performance-lab/assets/banner-772x250.png?rev=3098881){kind=link}
![[]](https://ps.w.org/performance-lab/assets/icon.svg?rev=2787149){kind=link}
4.2.0
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declare( strict_types = 1 )PHP. (2424) - PHP 7.2 7.4 . (2469)
- : no-store . (2481)
- Server Timing – . (2379)
4.1.0
- ServerTiming
$wpdb->queriesnull. (2346)
- Web Worker Offloading Performance Lab. (2404)
4.0.1
4.0.0
- / . (2119)
- . (2122)
- (Opt-in)
PERFLAB_PLACE_OBJECT_CACHE_DROPINobject-cache.php. (1996) -
wp_is_rest_endpoint()REST API . (2094)
3.9.0
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3.8.0
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Cache-Control: no-storebfcache . (1807) - (far-future expires) . (1727)
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plugins_url()plugin_dir_url(). (1761)
3.7.0
- . (1734)
- WordPress.org. (1680)
- (transient cache)
perflab_query_plugin_info(). (1694) - SCRIPT_DEBUG. (1658)
- . (1693)
3.6.1
- (race condition) . (#1675)
3.6.0
- ‘Plugin not found’. (1651)
3.5.1
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3.5.0
3.4.1
- _n(). (1491)
3.4.0
- Server-Timing . (1456)
3.3.1
- PHPStan ( empty.notAllowed). (1241)
- null perflab_admin_pointer(). (1393)
3.3.0
3.2.0
3.1.0
- . (1190)
- . (1208)
- . (1184)
- AVIF . (1177)
- server timing REST API. (1206)
- PHP .. (1130)
- perflab_install_activate_plugin_callback() . (1170)
- . (775)
- perflab_render_plugin_card() API . (1175)
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WordPress.DB.DirectDatabaseQuery.DirectQuery. (1179)
3.0.0
- wordpress.org . (1022)
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object-cache.php. (1047) - . (1111)
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- generator. (1103)
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2.9.0
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Server-Timing. (957)
2.8.0
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- : admin/plugins.php. (925)
2.7.0
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2.6.1
- : PHPStan . (816)
- : (assets) . (815)
2.6.0
2.5.0
2.4.0
2.3.0
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- : GHSA-66qq-69rw-6×63.
2.2.0
- : target . (690)
2.1.0
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object-cache.php. (672)
2.0.0
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1.9.0
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- : object-cache.php . (616)
1.8.0
1.7.0
1.6.0
1.5.0
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1.4.0
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webp_uploads_get_content_image_mimes()MIME . (420) - :
PERFLAB_PLUGIN_DIR_PATHplugin_dir_path(). (429) - : . (423)
1.3.0
- : (context) . (424)
- : MIME . (415)
- : WebP JPEG . (418)
- : . (381)
- : JPEG WebP . (360)
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wp_get_image_editor(). (404) - : . (425)
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perflab_aea_get_resource_file_size()wp_filesize(). (380) - : . (408)
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webp_uploads_upload_image_mime_transforms. (393) - : PHP
webp_uploads_prefer_smaller_image_filetrue. (397) - : (fallback) WebP. (433)
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- : .husky ZIP . (421)
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1.2.0
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webp_uploads_pre_generate_additional_image_source. (334) - : . (345)
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wp_filesizefilesize. (376)
1.1.0
- : generator
wp_head. (322)
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webp_uploads_pre_generate_additional_image_source(short-circuit) . (318) - :
webp_uploads_pre_replace_additional_image_source(short-circuit) . (319) - :
webp_uploads_prefer_smaller_image_file. (302) - : WebP . (316)
- : . (313)
- : escape . (332)
1.0.0
- : MIME . (235)
- : (backward compatibility). (240)
1.0.0-rc.1
- : WebP . (259)
1.0.0-beta.3
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1.0.0-beta.2
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the_contentMIME . (195) - :
memcached. (206) - : . (231)
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.gitattributes.distignoreZIP. (223)
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1.0.0-beta.1
- : WebP . (32)
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the_content. (152) - : WebP . (141)
- : JS CSS . (54)
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sources. (147) - : . (58)
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- : module-i18n.php . (196)
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perflab_active_modules. (87) - : . (110)
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object-cachingobject-cache. (108)