Case Study: Elementor Site Performance Optimization

A client came with a slow Elementor-based WordPress site. Initial performance metrics were poor:

• FCP: 6.2 s
• LCP: 12.1 s
• TBT: 220 ms

What was done

1. WP Rocket reconfiguration
   WP Rocket was used only for page caching, disabling all advanced optimization options to avoid conflicts with Perfmatters.
2. Perfmatters plugin added and configured
   • Delay JavaScript to defer non-critical scripts
   • Local Fonts to speed up font loading
   • Remove Unused CSS to reduce page weight
   • Script Manager to selectively disable heavy scripts
   • Lazy Load for images and iframes
3. Optimized workflow
   Caching is handled by WP Rocket, while Perfmatters manages all fine-grained performance optimizations, resulting in faster rendering and improved Core Web Vitals.

Results

• FCP: 6.2 s → 2.4 s
• LCP: 12.1 s → 3.4 s
• TBT: 220 ms → 0 ms

Takeaway

For Elementor sites, combining a caching plugin for basic page cache with a dedicated performance plugin for CSS, JS, fonts, and lazy loading can drastically improve Core Web Vitals and overall site speed without conflicts.

Written by Anton, founder of OSWOptimize and an SEO & Web Performance expert with 15+ years of experience optimizing WordPress sites, improving Core Web Vitals, and increasing search rankings.

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