E-Commerce Speed Optimization Agency

Expert E-Commerce Speed Optimization Services

Ecommerce speed optimization services for DTC and online retailers, engineered to speed up product pages, collections, and checkout for higher conversion.

E-commerce speed optimization is the highest-ROI investment an online store can make. Research consistently shows that every 100ms of improved load time increases conversions by 1% (Deloitte/Google). The average online store loses 7% of conversions per second of load time above 2 seconds, that's $7,000/month lost revenue for every $100K in monthly sales, per second of delay.

We are a dedicated ecommerce speed optimization agency. Every engagement is run by an expert who profiles your store across all revenue-critical templates: product pages, collection pages, cart, and checkout. We have delivered 90+ PageSpeed scores and Core Web Vitals passes on Shopify, WooCommerce, BigCommerce, Magento, and custom headless builds.

Shopify stores running 15–30+ apps with theme customizations, custom sections, and marketing integrations that have accumulated speed debt over time.

WordPress/WooCommerce stores with 20–40 plugins, custom themes, and complex product catalogs where plugin bloat and hosting configuration are the primary speed killers.

Large-scale e-commerce operations with complex catalogs, multi-currency, B2B pricing, and custom checkout flows where speed optimization requires deep platform expertise.

Fast-growing direct-to-consumer brands spending heavily on paid acquisition where every second of load time directly impacts ROAS and customer acquisition cost.

Product Pages Take 5–8 Seconds to Load

High-resolution product images (often 10–20 per product), variant selector JavaScript, review widgets, recommendation carousels, and social proof popups create product pages that take 5–8 seconds to become interactive. Every second past 2 seconds costs you 7% of potential conversions.

Checkout Abandonment from Slow Payment Flow

Payment scripts (Stripe, PayPal, Affirm, Klarna), address validation, tax calculation, shipping rate APIs, and fraud detection scripts all execute during checkout. A 3–5 second checkout delay causes 20–30% of customers to abandon at the final step, the most expensive abandonment point.

Category Pages Lag on Filter & Sort

When customers filter by size, color, or price on category pages with 100+ products, the page freezes while JavaScript re-renders the product grid. This creates 300–800ms interaction delays that fail INP and frustrate shoppers trying to find what they want.

App & Plugin Script Overload

The average e-commerce store has 15–30 installed apps/plugins, reviews, upsells, loyalty, chat, email capture, analytics, social proof, countdown timers. Each adds JavaScript and CSS to every page. Collectively, they consume 2–5 seconds of main-thread time.

Mobile Shopping Experience Is Broken

60–70% of e-commerce traffic is mobile, but mobile load times are typically 2–3x slower than desktop. Product images aren't properly sized for mobile screens, JavaScript execution is slower on mobile CPUs, and touch interactions are blocked by Long Tasks.

Core Web Vitals Failing on Key Pages

Google uses Core Web Vitals as a ranking signal. E-commerce sites with failing CWV on product and category pages see lower organic rankings, reduced visibility in Shopping results, and higher cost-per-click in paid campaigns. The most common failures: LCP from unoptimized hero images, INP from heavy JavaScript, and CLS from late-loading elements.

53%

of mobile visitors leave if a page takes longer than 3 seconds to load

~7%

conversion loss from a 1-second delay

70%

more organic traffic for sites passing Core Web Vitals

~1%

more conversions per 100ms faster load time

Deliverables

What You'll Receive

Every engagement includes comprehensive documentation and reporting.

Product and Collection Pages

Optimize image delivery, lazy-load offscreen content, defer non-critical scripts, and tune product galleries and filtering for fast interaction.

Cart and Checkout Performance

Profile every step of the buy flow, fix render-blocking scripts, eliminate third-party tag bloat, and stabilize layout shifts on payment forms.

Third-Party App and Pixel Audit

Inventory every app, pixel, and tracking script. Defer, delay, or replace each one to reclaim main-thread time without losing data accuracy.

CDN and Edge Caching

Configure CDN cache rules, edge image transforms, and proper TTLs to serve product imagery and pages from the closest edge.

Theme and Template Refactor

Refactor heavy theme code, reduce DOM size, extract critical CSS per template, and modernize render paths without breaking design.

Core Web Vitals Engineering

Target LCP, INP, and CLS on every revenue-critical template using CrUX field data and Lighthouse lab data side by side.

"Platterful saw major improvements in site speed after working with Matt and the PageSpeed Matters team. They took our mobile score from the 50s to over 90 while keeping SEO intact. They were responsive, helpful, and continued to support us even after the project ended. Highly recommend."

"Matt and the PageSpeed Matters team successfully helped us improve our page speed load times and get our core web vitals into the green."

"Couldn't be any happier with the work done by Matt and the PageSpeed Matters team, they were communicative, open, honest."