Performance Engineering
Slow storefronts lose orders before checkout ever loads. We diagnose and fix the real bottlenecks — render-blocking scripts, unoptimized media, bloated themes — against real Core Web Vitals targets, measured on the mid-tier phones and real mobile networks most shoppers actually use, not a fast office connection.
What you get
- Core Web Vitals audit (LCP, INP, CLS)
- Script and third-party app audit
- Image and media optimization pipeline
- Caching and CDN configuration review
- Theme/code performance pass
- Ongoing performance monitoring setup
Why businesses engage us for performance engineering
A storefront that's fast on the mid-tier phone your customers actually use — not just a good score in a lab test run under ideal conditions.
Our approach to performance engineering
Core Web Vitals Audit
LCP, INP, and CLS measured against real field data, broken down by page template so we know exactly which pages and resources are the actual bottleneck.
Script & Third-Party Audit
Every third-party script and app audited for what it actually costs in load time, with a plan to defer, lazy-load, or remove what doesn't earn its weight.
Media & Asset Optimization
Images and fonts converted to modern formats, sized correctly per breakpoint, and loaded with the right priority so the content that matters paints first.
Monitoring & Regression Prevention
Ongoing Core Web Vitals monitoring set up so a future app install or theme change gets caught before it quietly erodes the gains.
Common questions
We passed our PageSpeed Insights score — do we still need this?+
A passing lab score doesn't guarantee good real-world performance — field data from real visitors sometimes tells a different story than a single lab test run. We check both before calling anything fixed.
Will this require a full replatform?+
Rarely. Most performance problems come from accumulated third-party scripts, unoptimized media, and theme bloat — fixable within your current platform.
How much of a speed improvement should we expect?+
It depends on the current state — a store with years of accumulated apps typically sees the largest gains. We set specific Core Web Vitals targets up front so improvement is measured, not just claimed.
Does faster loading actually affect conversion, or just search rankings?+
Both — Core Web Vitals are a confirmed Google ranking signal, and page speed separately has a well-documented relationship with conversion rate and cart abandonment.
Related services
Most ecommerce problems touch more than one discipline. These pages cover the adjacent work.
Ecommerce Strategy
Platform selection, roadmap planning, and architecture decisions aligned with business goals.
WooCommerce Development
Custom WooCommerce builds where content and commerce share a platform, with code-level control over business rules.
BigCommerce Development
Stencil and headless BigCommerce development for complex catalogs, customer groups and B2B price lists.
Ready to start?
Tell us about your ecommerce business, current platform, and goals — we'll follow up with a clear next step.