How We Helped Her Fantasy Box Improve Site Speed by 300% and Pass Core Web Vitals

300%

Overall Speed Improvement

31%

Largest Contentful Paint (LCP) Improvement

34%

Interaction to Next Paint (INP) Improvement

Project Overview

The PageSpeed Matters team was brought on as Shopify performance consultants to resolve website speed issues on the Her Fantasy Box site.

This involved:

Collaborating with their internal team
Delivering dozens of performance recommendations
Coordinating with external app providers to ensure a seamless optimization process
Implementing and validating changes with minimal risk to ongoing sales

Because Her Fantasy Box had already processed over 1 million orders and attracted millions of pageviews, any performance work had to be executed carefully to avoid interrupting revenue or breaking key customer flows.

Goals & Objectives

When the Her Fantasy Box team engaged PageSpeed Matters, the primary challenge was balancing aggressive performance gains with zero disruption to a high-volume eCommerce operation.

Our objectives were to:

Pass Google’s Core Web Vitals across key templates and high-traffic pages
Ensure 0% downtime during all optimization and deployment activities
Test changes in batches to reduce risk and make debugging easier
Coordinate a seamless deployment window with their internal team
Provide consistent monitoring & debugging during and after launch
Offer post-launch support to quickly address any unexpected issues

All of this needed to happen while maintaining a stable experience for existing customers and preserving the look, feel, and functionality of the brand’s Shopify storefront.

Outcomes:

Through careful planning, staged implementation, and close collaboration with both the Her Fantasy Box team and third-party app providers, PageSpeed Matters delivered measurable and meaningful improvements:

Passing Core Web Vitals

Her Fantasy Box’s key pages now meet Google’s recommended thresholds, supporting better rankings and more efficient paid traffic.

300% Overall Speed Improvement

Overall page load and interaction performance improved by 300%, resulting in faster perceived load times and smoother browsing across devices.

31% Largest Contentful Paint (LCP) Improvement

We reduced the time it takes for the main content to visibly load, improving first impressions and helping visitors stay engaged instead of bouncing.

34% Interaction to Next Paint (INP) Improvement

Interactive elements—such as navigation, product selections, and cart actions—respond noticeably faster, creating a smoother and more trustworthy shopping experience.