LCP
Largest Contentful Paint
5.3s
Poor
Good: < 2.5s
Measures how long it takes for the main content to appear on screen
Optimize JavaScript Bundle Size
How to optimize maisongustavia.com
Optimize JavaScript Bundle Size
High Impact+15 points estimated
Why It Matters
Unused JavaScript totaling 56KB is slowing page interactivity and blocking the main thread.
How to Fix
Remove or defer Facebook Pixel loading (34KB saved) until after page load using Shopify's Customer Privacy API. Audit your theme's JavaScript modules and remove unused Shopify app scripts. Consider lazy-loading non-critical tracking scripts.
0Needs Improvement
What This Score Means
A score of 59 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
77ms
Good
Good: < 200ms
Measures how quickly the page responds to user interactions
CLS
Cumulative Layout Shift
0.50
Poor
Good: < 0.1
Measures visual stability - how much content shifts during page load
AI Performance Analysis
This Shopify site has poor performance with a score of 59/100, primarily due to severe layout shifting issues that make the page unstable as it loads. The biggest problem is a Cumulative Layout Shift score of 0.496 (anything above 0.1 is considered poor), caused mainly by an unsized image that shifts content around when it loads. Additionally, the site takes 6.6 seconds to become fully interactive and 5.3 seconds for the main content to appear, which will frustrate users and hurt search rankings. The most impactful fixes would be adding explicit width and height dimensions to images, optimizing image compression to save 42KB, and removing 56KB of unused JavaScript from Facebook tracking scripts.
Other Optimization Recommendations
Fix Cumulative Layout Shift Issues
High Impact+25 points estimatedWhy It Matters:
Your CLS score of 0.496 is poor (needs <0.1) due to unsized images causing major content jumps.
How to Fix:
Add explicit width='240' height='240' attributes to the design_8.png image in your Shopify theme files. In your product card templates, ensure all images have dimensions set. Use aspect-ratio CSS for responsive sizing while maintaining space reservation.
Improve Image Compression and Delivery
Medium Impact+8 points estimatedWhy It Matters:
Product images can be compressed by 42KB total, directly improving LCP by 150ms.
How to Fix:
Enable Shopify's automatic image optimization or use TinyIMG app to compress existing images. Set optimal compression levels (80-85% quality) for product photos. Ensure WebP format is served to supported browsers through Shopify's image transformation URLs.
Keep Your Site Fast After Optimization
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Related Performance Analyses
More Shopify Speed Tests
Shopify Performance Resources
Remove Unused JavaScript Code
57KB of unused JavaScript wastes bandwidth and slows page loading, especially on mobile connections.
Eliminate Render Blocking CSS
Critical CSS files delay First Contentful Paint by 300ms, making pages appear slower to users.
Fix Layout Shifts from Images
Unsized images cause significant layout shifts (CLS: 0.314) that hurt user experience and search rankings.
Improve Image Compression and Delivery
Product images can be compressed by 42KB total, directly improving LCP by 150ms.