In a recent Business Bloomer Club Slack thread, we discussed the impact of Core Web Vitals optimization on website performance and SEO.
Some store owners have invested in optimizing Core Web Vitals but saw little to no improvement in their site’s performance or search ranking.
This raised questions about the real-world benefits of focusing on Core Web Vitals, especially for WooCommerce stores of different sizes and with varying technical setups.
The discussion also touched on how perceived page speed, especially the “above the fold” content load time, might have more influence than overall metrics.
In this post, we’ll explore whether optimizing Core Web Vitals is always a critical task and what factors store owners should consider to get the most value from their efforts.
What Are Core Web Vitals and Why Do They Matter?
Core Web Vitals are a set of Google metrics designed to measure user experience based on page load performance, interactivity, and visual stability. They include:
- Largest Contentful Paint (LCP) — measures loading performance.
- First Input Delay (FID) — measures interactivity.
- Cumulative Layout Shift (CLS) — measures visual stability.
Google uses these metrics as ranking signals, encouraging website owners to improve their site speed and user experience.
For WooCommerce stores, this can translate into faster browsing, smoother checkout, and potentially better SEO.
Why Optimization May Not Always Show Results
One WooCommerce store owner reported investing in Core Web Vitals optimization without seeing a tangible effect on their site’s performance or Google rankings. Several factors can explain this:
- Focus on the wrong areas: Sometimes, optimization efforts don’t address the most impactful issues. For example, improving backend code but neglecting “above the fold” content speed can limit perceived performance gains.
- Competition level: If competitors also optimize or have already fast sites, gains might be marginal.
- Site size and complexity: Small or medium sites might not see dramatic improvements, while large sites with heavy content and traffic may benefit more.
- External dependencies: Resources like Google APIs (e.g., reCAPTCHA) can affect loading times outside your direct control.
The Importance of Perceived Page Speed
Another key insight from the discussion is that perceived page speed, especially how fast the first visible part of the page loads (“above the fold”), is often more important than overall Core Web Vitals scores. Improving how quickly users see meaningful content can reduce bounce rates and increase engagement.
Tools like Google Analytics and real user monitoring (RUM) can help measure this perception better than synthetic lab tests alone.
Does Your WooCommerce Site Size Matter?
The impact of Core Web Vitals optimization also depends on your site’s size and structure. For very large WooCommerce stores, improvements can save crawl budget and reduce server load, potentially benefiting SEO and user experience more noticeably.
For smaller stores, while speed is still important, other factors like product quality, pricing, and marketing might play a larger role in driving conversions than minor speed improvements.
Practical Tips to Improve WooCommerce Speed Beyond Core Web Vitals
- Prioritize reducing server response time and optimizing hosting.
- Minimize render-blocking JavaScript and CSS.
- Use lazy loading for images and videos.
- Limit the use of third-party scripts that slow down page load.
- Optimize “above the fold” content for faster first paint.
- Monitor real user data to understand actual visitor experience.
Conclusion
Core Web Vitals are an important piece of the WooCommerce performance puzzle, but they aren’t the only factor to consider.
Optimizing perceived page speed and focusing on the specific needs of your store size and audience will often bring better results.
Don’t rely solely on Core Web Vitals scores; instead, take a holistic approach to speed and user experience.








