LCP
Largest Contentful Paint
5.3s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Optimize Critical CSS Delivery
How to optimize projectpatio.com
Optimize Critical CSS Delivery
High Impact+10 points estimated
Why It Matters
33KB of unused CSS and render-blocking stylesheets are delaying FCP by 300ms.
How to Fix
In your theme editor, inline critical above-the-fold CSS directly in theme.liquid header. Move non-critical CSS (90% of theme.css) to load asynchronously using media='print' onload technique. Use Shopify's CSS minification or apps like TinyIMG to remove unused CSS rules from your theme files.
0Needs Improvement
What This Score Means
A score of 79 falls in the "Needs Improvement" 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
INP
Interaction to Next Paint
76ms
Good
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 decent but improvable performance with a score of 79/100. The biggest problem is excessive unused JavaScript from Google Analytics tracking scripts, which is wasting 309 KB of data and delaying page interactivity to a sluggish 13 seconds. The site also suffers from render-blocking CSS files and an oversized image that's loading at 4x its display size, contributing to a slow 5.3-second Largest Contentful Paint. Removing unused JavaScript, optimizing the installation guide image, and deferring non-critical CSS could easily boost the score above 90 and dramatically improve user experience.
Other Optimization Recommendations
Reduce Unused JavaScript Dependencies
High Impact+12 points estimatedWhy It Matters:
309KB of unused JavaScript is delaying LCP by 750ms, primarily from Google Analytics scripts.
How to Fix:
In your Shopify admin, go to Settings > Analytics and review your Google Analytics implementation. Consider using gtag4 instead of multiple gtag instances. Move Google Analytics to load asynchronously after page load using Shopify's Script Tag API or defer the scripts in your theme's layout/theme.liquid file.
Fix Image Sizing Issues
Medium Impact+6 points estimatedWhy It Matters:
Missing image dimensions cause layout shifts and the main image is 4x larger than needed, wasting 50KB.
How to Fix:
Add explicit width='378' height='131' attributes to your rocker-plate-installation-guide.webp image in the template file. In Shopify admin, replace the 1420x491px image with a properly sized 378x131px version using Shopify's image transformation URL parameters (?width=378&height=131) or upload a correctly sized image.
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Related Performance Analyses
More Shopify Speed Tests
Shopify Performance Resources
Optimize Hero Image Dimensions
The main content image is 13x larger than needed, wasting 50KB and delaying LCP.
Remove Unused JavaScript Code
205KB of unused JavaScript is delaying LCP by 1.35 seconds and wasting network resources.
Eliminate Render-Blocking CSS Resources
Render-blocking CSS is delaying First Contentful Paint by 830ms and blocking critical page rendering.
Optimize JavaScript Bundle Size
Unused JavaScript totals 313KB with Google Tag Manager scripts contributing 238KB of unused code.