Fix Main Thread Blocking Issues

How to optimize cerasus.ro

WordPress SiteScore: 60/100Analyzed May 2026Re-analyze this site

Fix Main Thread Blocking Issues

High Impact+15 points estimated

Why It Matters

2.6 seconds of main thread work is causing 300ms Total Blocking Time, primarily from script evaluation and forced reflows.

How to Fix

Optimize the Savoy theme's nm-core.min.js by removing forced DOM queries that trigger reflows. Use WP Rocket to defer jQuery and theme scripts until user interaction. Implement code splitting for the cookie consent banner to load after page interactive.

0Needs Improvement

What This Score Means

A score of 60 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

LCP

Largest Contentful Paint

16.5s
Poor

Good: < 2.5s

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

INP

Interaction to Next Paint

180ms
Good

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 WordPress site has poor performance with a score of 60/100, suffering from extremely slow loading times with pages taking over 16 seconds to become fully interactive. The biggest problem is oversized, unoptimized images that are consuming over 3.5MB of data and causing the Largest Contentful Paint to take 16.5 seconds - particularly banner images that are served at 1500x1000 pixels but displayed at much smaller sizes. The site is also bloated with unused CSS (83KB) and JavaScript (230KB), plus inefficient caching and render-blocking resources that delay the initial page display by 1.6 seconds. Converting images to modern formats like WebP, implementing proper responsive images, removing unused code, and fixing caching could potentially improve the score by 30+ points and dramatically reduce loading times.

Other Optimization Recommendations

Optimize Critical Images and Delivery

High Impact+25 points estimated

Why It Matters:

Images account for 1,611 KiB of wasted bandwidth and delay LCP by 150ms, with banner images being oversized and unoptimized.

How to Fix:

Convert banner images to WebP/AVIF format using ShortPixel or Imagify WordPress plugins. Implement responsive images with proper srcset attributes for mobile banners. Add fetchpriority='high' to the LCP banner image and ensure proper dimensions (412x275 vs current 1500x1000).

Reduce Unused CSS and JavaScript

High Impact+20 points estimated

Why It Matters:

83 KiB of unused CSS and 230 KiB of unused JavaScript are blocking render and delaying LCP by 1.65 seconds combined.

How to Fix:

Install Asset CleanUp Pro to remove unused CSS from shop.css and style.css on non-shop pages. Defer Google Tag Manager and Facebook Pixel scripts using WP Rocket's JavaScript optimization. Remove or defer unused WooCommerce blocks CSS when not needed.

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.

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