How to fix low performance score on Wix

Steps for Wix

1. Wix handles server infrastructure, CDN, and GZIP automatically — you cannot control these directly, but you can control what you put on pages.
2. Reduce the number of Wix Apps installed: Dashboard → Manage Apps → remove any app not actively used, as each adds JS payload.
3. Compress and resize images before uploading: use Squoosh (squoosh.app) to convert to WebP and resize to actual display dimensions before adding to Wix Media Manager. Wix will then serve them efficiently.
4. In the Wix Editor, avoid stacking multiple large video backgrounds, animated GIFs, or auto-playing videos above the fold — these are the most common causes of high LCP on Wix.
5. Turn on Wix's built-in performance features: Dashboard → Settings → Performance → enable 'Turbo' mode (if available on your plan) and ensure lazy loading is on.
6. Remove unused custom code blocks: Dashboard → Settings → Custom Code → delete any tracking pixels or widgets you no longer need.
7. Re-test with PageSpeed Insights and consider upgrading to a higher Wix plan if your current plan limits performance features.

What is low performance score?

The Lighthouse Performance Score (shown in Google's PageSpeed Insights tool) is a single number from 0–100 that summarises how fast your web page loads and responds for real users — especially on mobile. It is calculated from five timing metrics, with the three Core Web Vitals (Largest Contentful Paint, Interaction to Next Paint, and Cumulative Layout Shift) carrying the most weight. A score below 50 is considered "Poor" by Google; a score above 90 is "Good." Think of it as a health-check report card for your page's speed: every point you gain means real customers are waiting less and leaving less.

Google officially uses page experience signals — including Core Web Vitals — as a ranking factor, meaning a very low score can directly suppress your position in search results and reduce organic traffic. Beyond rankings, a slow page destroys conversions: industry data consistently shows that each additional second of load time drops conversion rates by 10–20 %, and mobile shoppers are the most sensitive. A score of 8/100 on mobile means the vast majority of your mobile visitors are likely bouncing before they even see your products, costing you both ad spend and organic sales. Closing this gap is one of the highest-ROI technical improvements an ecommerce store can make.

See the complete Low performance score guide for every platform and the full background.