Reduce JavaScript Execution Time

How to optimize zodiaconline.com

Shopify SiteScore: 46/100Analyzed February 2026

Reduce JavaScript Execution Time

High Impact+15 points estimated

Why It Matters

8 seconds of main-thread work creates 490ms Total Blocking Time, severely impacting user interactions.

How to Fix

Remove unused JavaScript code from Breeze SDK (86KB unused) and Wishlist app (33KB unused). Defer non-critical third-party scripts like Clarity analytics until after page load. Split large JavaScript bundles and load them asynchronously using Shopify's script_tag with defer attribute.

0Poor

What This Score Means

A score of 46 falls in the "Poor" range (50-89). While it is better than poor (0-49), you should aim for 90+ to provide an optimal user experience and maximize SEO benefits.

This site is slower than approximately 35% of similar sites. The main issues affecting performance are image optimization, JavaScript execution time, and layout stability.

Addressing these issues could improve your conversion rate by 15-20% and boost your search engine rankings.

Core Web Vitals Analysis

LCP

Largest Contentful Paint

29.8s
Poor

Good: < 2.5s

Measures how long it takes for the main content to appear on screen

INP

Interaction to Next Paint

202ms
Needs Improvement

Good: < 200ms

Measures how quickly the page responds to user interactions

CLS

Cumulative Layout Shift

0.01
Good

Good: < 0.1

Measures visual stability - how much content shifts during page load

AI Performance Analysis

This Shopify site has severe performance issues with a critically low score of 46/100. The biggest problem is excessive JavaScript execution taking 8 seconds of main thread work, which is causing your pages to become interactive in a dismal 36.4 seconds and delaying your Largest Contentful Paint to nearly 30 seconds. The site is also loading enormous image files from Instagram (over 6MB in savings available) that are oversized for their display dimensions and using outdated formats. Reducing JavaScript payloads, optimizing images to modern WebP/AVIF formats, and implementing proper image sizing could potentially improve your score by 30+ points and dramatically enhance user experience.

Other Optimization Recommendations

Optimize Instagram Images and Videos

High Impact+18 points estimated

Why It Matters:

6.7MB of unoptimized images delay LCP by 150ms and waste significant bandwidth.

How to Fix:

Convert Instagram poster images from JPEG to WebP format using Shopify's image transformation API. Implement responsive image sizing for video posters (currently oversized by 300KB each). Use Shopify's srcset parameter to serve appropriately sized images for mobile displays.

Eliminate Render-Blocking CSS

Medium Impact+12 points estimated

Why It Matters:

CSS files block First Contentful Paint by 320ms, delaying critical page rendering.

How to Fix:

Inline critical CSS for above-the-fold content directly in the Shopify theme template. Use Shopify's stylesheet_tag with media='print' onload trick to load non-critical CSS asynchronously. Combine multiple small CSS files (base.css, swiper-bundle.css) into a single optimized file.

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Keep Your Site Fast After Optimization

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