Shopify Site Speed Optimization Services

Your Shopify store loses approximately 7% in conversions for every additional second of page load time. The average Shopify store scores 35-55 out of 100 on mobile PageSpeed. The top 10% score 70 or above. The gap between where your store is and where it should be is almost always caused by unoptimized product images and app script bloat.

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16+

Years in business

500+

Projects Delivered

50+

Team Members

98%

Client Retention

7%

more conversions for every 1-second improvement in mobile load time

Google and Deloitte research confirms a 7% conversion rate increase for every 1-second improvement in mobile page load time. For a Shopify store generating $100,000 monthly, a 2-second improvement translates to approximately $168,000 in additional annual revenue.

35-55

average Shopify mobile PageSpeed score out of 100

The average Shopify store scores 35-55 out of 100 on mobile PageSpeed Insights. The top 10% achieve 70 or above. The gap is almost always caused by unoptimized images and app script bloat, both of which are fixable without changing the theme.

1-2s

typical LCP improvement from removing unused app scripts

Removing or deferring app scripts loading on pages where apps are not used typically improves LCP by 1-2 seconds. For a store with 10+ apps, this is the fastest speed win available. The Shopify technical SEO page covers the full app script audit process.

98%

client retention

Most Shero speed optimization clients continue on a retainer for ongoing monitoring. Speed regressions happen after every app installation and theme update. Active monitoring catches them before they affect rankings or conversion.

Working with Shero has been an outstanding experience. Their team is highly skilled and easy to work with.

Douglas J. Stang, VP, E-commerce, Justrite Safety Group

What Shopify site speed optimization covers

Shopify site speed optimization addresses the platform-specific causes of slow load times: unoptimized images, app scripts loading on irrelevant pages, render-blocking JavaScript, and Liquid theme inefficiencies. LCP under 2.5s, INP under 200ms, and CLS under 0.1 are the benchmarks affecting rankings and conversion. Shero audits and optimizes Shopify stores where slow page load is suppressing conversion and rankings. Every engagement starts with real-user Search Console Core Web Vitals data, not Shopify's admin Speed Score, which measures lab conditions.

  • Core Web Vitals audit: LCP, INP, CLS using Search Console field data
  • App script audit: identify and defer scripts loading on irrelevant pages
  • Product image optimization: WebP conversion, compression, lazy loading
  • Render-blocking JavaScript identification and deferral
  • Liquid theme code audit for performance bottlenecks
  • Post-optimization monitoring after every app and theme update

Why brands choose Shero for Shopify site speed optimization

Most Shopify speed problems have three causes: too many apps loading scripts globally, product images uploaded without optimization, and a Shopify admin Speed Score that does not reflect real user experience. Shero addresses all three using actual Core Web Vitals field data from your real visitors, not lab simulations.

01

A 1-second improvement in load time generates 7% more conversions on a typical Shopify store

Every 1-second improvement in mobile load time increases conversion rates by 7% (Google and Deloitte). For a store generating $100,000 monthly, a 2-second improvement translates to roughly $168,000 additional annual revenue. Shero quantifies the expected conversion impact before speed work begins.

02

Apps loading globally are the single biggest cause of slow Shopify stores

Every Shopify app injects JavaScript on every page, even where the app has no function. A store with 15-20 apps frequently has 8-10 loading scripts on the storefront. Removing or deferring unused app scripts typically improves LCP by 1-2 seconds without removing any functionality. Shero audits every app's script injection.

03

Product images are the most common cause of slow LCP on Shopify product pages

For most Shopify product pages, the LCP element is the main product image. Common mistakes: uploading raw camera files, skipping WebP conversion, and omitting dimensions which causes layout shift. Shero audits image sizes, formats, and loading attributes across all page types and delivers a prioritized fix plan.

04

Shopify's admin Speed Score is not Core Web Vitals

Shopify's admin Speed Score is a Lighthouse simulation. Search Console Core Web Vitals use real Chrome data over 28 days. A store can score 70 and fail Core Web Vitals for real mobile users. Shero uses Search Console field data for all speed assessments. The Shopify Core Web Vitals page covers the metrics in detail.

05

Shopify stores average 309ms TTFB versus 776ms for WooCommerce

Shopify's managed infrastructure gives every store a fast baseline: global Cloudflare CDN, automatic SSL, HTTP/2, and HTTP/3 support. The platform advantage means Shopify stores start fast. The performance problems come from what is added on top: apps, heavy themes, and unoptimized images. Shero optimizes what is controllable while preserving the platform infrastructure advantages.

06

Speed optimization delivers compounding ROI as a ranking factor and a conversion factor

Faster pages rank better via Core Web Vitals, attracting more organic traffic. That traffic converts better because speed reduces abandonment. Speed improvement compounds: better rankings, more organic traffic, higher revenue from the same conversion rate. The Shopify technical SEO page covers how speed optimization integrates with the full technical SEO workstream.

Our Work

View All
Well-known American knife manufacturer

Benchmade

For more than three decades, Benchmade has been known for producing high-quality knives for everyday carry, hunting, rescue, and outdoor use. Launched on Magento Commerce Cloud in 2018, the brand partnered with Shero to tap into the surge in outdoor consumer demand and scale their online presence.

Benchmade
Sports equipment for lacrosse and field hockey

STX

STX Sporting Goods is a leading global manufacturer of innovative sports equipment and apparel, catering to athletes and enthusiasts in lacrosse, field hockey, and other team sports. Renowned for its cutting-edge technology and premium products, STX sought to revamp its digital presence to align with its reputation for excellence.

STX
Body jewelry and tattoo supplies

Painful Pleasures

Painful Pleasures is a long-standing supplier of body jewelry and tattoo supplies with a catalog of 40,000+ products. The brand partnered with Shero to complete a stalled Magento to Shopify migration and deliver the complex custom features their business depends on.

Painful Pleasures
Musical instruments and audio equipment

Alto Music

A long-standing musical instrument retailer with a loyal customer base, Alto Music partnered with Shero to migrate from Magento 2 to Shopify, preserving their beloved Altobucks loyalty program and delivering a more manageable, cost-effective platform without sacrificing any of the features their customers loved.

Alto Music

A 30-minute call with Shero produces a specific scope, audit findings, and recommendation. No generic proposals.

Get a quote

How Shero optimizes Shopify site speed

01

Core Web Vitals field data audit

Pull real-user LCP, INP, and CLS data from Google Search Console. Identify which page types and device types are failing and by how much. Never use Shopify's admin Speed Score as the performance benchmark.

02

App script audit

Audit every installed app's JavaScript injection. Identify scripts loading on pages where the app is not used. Defer or remove those scripts. Verify no app functionality is broken before closing each optimization.

03

Image audit and optimization

Audit product image file sizes, formats, and loading attributes across collection and product pages. Convert to WebP, compress without visible quality loss, and add explicit dimensions to eliminate layout shift.

04

Render-blocking resource audit

Identify CSS and JavaScript that block page rendering. Defer non-critical scripts to load after core content is visible. Preload the LCP image so the main product photo appears as fast as possible.

05

Liquid theme audit

Review theme Liquid code for performance bottlenecks: unused sections loading globally, synchronous third-party script calls, and CSS not scoped to relevant page types.

06

Post-optimization monitoring

Monitor Core Web Vitals after every app installation and theme update. Performance regressions on Shopify are almost always caused by something recently added. Shero sets up monitoring to catch regressions before they affect rankings.

Frequently asked questions.

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What our clients say.

We design experiences that make a difference. See what our clients have to say about working with us.

Benchmade Knife Co.

"Working with Shero Commerce for the past three years has been a game-changer for our B2B eCommerce business.Their expertise in email marketing, website support, and eCommerce strategy has significantly improved our online presence and optimized our B2B operations.The team’s dedication to our success is evident, and we’re excited to continue our partnership with them. If you’re looking for a reliable and results-driven eCommerce agency, look no further than Shero."

Joe Prebich

VP of Marketing / Benchmade Knife Co.

STX

"Since partnering with Shero Commerce, our eCommerce revenue has grown by 200%. Their 24/7 support and innovative solutions have been game-changers for our business. "

James McKenna

Senior Commerce & CX Manager / STX

Painful Pleasures

"Our journey from Magento to Shopify was riddled with complexities and challenges. With a vast catalog and intricate B2B logic, we needed expertise that could navigate through these intricacies. Shero Commerce was our beacon. They not only provided innovative solutions but also utilized their vast Magento knowledge to bridge gaps in Shopify’s native features. Now, our platform is seamless, our costs are reduced, and the headaches are a thing of the past. A heartfelt thank you to the Shero team!"

Patrick Rice

CEO / Painful Pleasures

Vienna Beef

"Our experience with Shero Commerce has been exceptional. Their expertise in migrating our website to BigCommerce resulted in a seamless transition, and we’ve seen a significant improvement in our checkout process and overall user experience. Their web design skills have truly elevated our online presence, and we couldn’t be happier with the results."

Reid Schwartz

eCommerce Manager / Vienna Beef

And you?

Let's build something great together.

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