Optimize JavaScript Execution and Delivery

How to optimize truesilver.co.in

Shopify SiteScore: 29/100Analyzed May 2026Re-analyze this site

Optimize JavaScript Execution and Delivery

High Impact+25 points estimated

Why It Matters

JavaScript execution takes 8.2 seconds and creates 3.35 seconds of main thread blocking, severely delaying interactivity.

How to Fix

Remove or defer unused JavaScript files like Razorpay Magic Checkout (99% unused) and Facebook Pixel. In Shopify admin, audit your apps and remove unused ones. Use Shopify's Script Tag API to load third-party scripts asynchronously after page load. Consider moving tracking pixels to Google Tag Manager with proper deferral.

0Poor

What This Score Means

A score of 29 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

11.0s
Poor

Good: < 2.5s

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

INP

Interaction to Next Paint

1040ms
Poor

Good: < 200ms

Measures how quickly the page responds to user interactions

CLS

Cumulative Layout Shift

0.00
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 critical score of 29/100, indicating a very poor user experience. The biggest problem is excessive JavaScript execution taking over 14 seconds of main thread work, which is causing your Largest Contentful Paint to reach an extremely slow 11 seconds and blocking user interactions for over 3 seconds. The site is also loading massive amounts of unused JavaScript (1.6MB) and CSS (145KB), plus unoptimized images that could be compressed by over 1MB. Immediate priorities should be removing or deferring unused third-party scripts, optimizing images, and cleaning up unused code - these changes could potentially improve your score by 40+ points and dramatically enhance user experience.

Other Optimization Recommendations

Compress and Optimize Hero Images

High Impact+18 points estimated

Why It Matters:

Your hero GIF is 842KB and delays LCP by 4.25 seconds, making it the primary performance bottleneck.

How to Fix:

Replace the large GIF with an optimized video (MP4/WebM) or static image with CSS animations. Use Shopify's built-in image optimization by uploading WebP format. Enable 'priority' loading for hero images and set proper width/height attributes. Consider using Shopify's responsive image features with srcset.

Eliminate Render-Blocking Resources

Medium Impact+12 points estimated

Why It Matters:

CSS and font files block initial page rendering for 1.13 seconds, delaying First Contentful Paint.

How to Fix:

Inline critical CSS for above-the-fold content in your Shopify theme's liquid templates. Add font-display: swap to Google Fonts and preload key font files. Move non-critical CSS like third-party app styles to load after initial render using media='print' onload technique.

Keep Your Site Fast After Optimization

Once your site is optimized, maintain that speed. Use DeployHQ for zero-downtime, automated deployments—so performance fixes and updates go live safely every time, without breaking your site.

Explore DeployHQ →Trusted by engineering teams shipping high-performance sites

Want to Analyze YOUR Website?

Get AI-powered performance insights with actionable fixes in 30 seconds

More Shopify Speed Tests

Shopify Performance Resources

Frequently Asked Questions