How to fix cwv inp on WooCommerce

Steps for WooCommerce

1. Install a performance plugin such as WP Rocket, Perfmatters, or Asset CleanUp Pro. In its settings, enable 'Delay JavaScript execution' or 'Load JS deferred' for third-party scripts (chat, CRM pixels, review widgets).
2. Go to WP Admin → Plugins and deactivate any plugin whose frontend script you don't actively need. Each deactivated plugin typically removes one or more scripts from the page.
3. In WP Rocket (or equivalent), use the 'Delay JavaScript' feature to defer specific scripts (e.g., Facebook Pixel, Intercom) until after first user interaction.
4. If using a page builder (Elementor, Divi, etc.), go to its performance settings and enable 'Improved Asset Loading' or 'Script Loading Optimizations' — these defer builder-injected JS.
5. For custom code, open your child theme's functions.php or a custom plugin and change `wp_enqueue_script` calls to use `'in_footer' => true` and add the `defer` strategy via the `$args` array (WP 6.3+): `wp_enqueue_script('my-script', $src, $deps, $ver, ['strategy' => 'defer'])`.
6. Verify with PageSpeed Insights and the Chrome DevTools Performance panel; monitor Google Search Console → Core Web Vitals report.

What is cwv inp?

Interaction to Next Paint (INP) measures how quickly your page visually responds after a visitor taps a button, opens a menu, or types in a search box — from the moment they interact to the moment the screen actually updates. Google considers anything under 200 ms "good," 200–500 ms "needs improvement," and over 500 ms "poor." INP is now a Core Web Vital, meaning it is part of Google's official page-experience signal that feeds directly into rankings. A high INP score almost always means the browser's main thread is busy running JavaScript and simply cannot get around to updating what the visitor sees for a frustrating fraction of a second (or longer).

Google uses Core Web Vitals — including INP — as a ranking signal, so a poor INP score can quietly suppress your pages in search results compared to faster competitors. Beyond rankings, a sluggish-feeling page directly hurts conversions: studies consistently show that every 100 ms of added interaction delay reduces add-to-cart and checkout completion rates. On mobile, where CPU speed is limited and networks are slower, a 500–800 ms INP is especially damaging because mobile shoppers are the majority of ecommerce traffic. There is also an accessibility dimension — users who rely on keyboard navigation or assistive technology are disproportionately harmed by delayed visual feedback, which can create a frustrating or unusable experience.

See the complete Cwv inp guide for every platform and the full background.