Performance Optimization
Deep engineering work to make slow sites and applications genuinely fast. Core Web Vitals rebuilt, database queries tuned, caching layered in, bundle sizes cut. Real measurable gains in weeks, not months.
What you get
Key features
Every Performance engagement includes the following as standard.
- 01Core Web Vitals (LCP, INP, CLS) tuning
- 02Database query and index optimisation
- 03Redis and edge caching strategies
- 04JavaScript bundle analysis and code splitting
- 05Image, font, and asset optimisation
- 06CDN configuration and edge routing
- 07Real User Monitoring (RUM) setup
- 08Prioritised action roadmap with expected impact
Technology stack
What we build this on
Every stack choice below is battle-tested at production scale. No hobby frameworks, no bleeding edge for its own sake.
FAQs
Performance, answered
What kind of performance gains are realistic?+
For a site that has not been optimised: typically 40 to 70% reduction in LCP, 50 to 80% reduction in JavaScript payload, and Core Web Vitals moving from "poor" to "good" within 4 to 8 weeks. Actual gains depend on where you are starting.
How long does a performance engagement take?+
A focused sprint is 4 to 6 weeks: audit, prioritised roadmap, implementation, and measurement. Deeper engagements covering database and backend optimisation take 8 to 12 weeks.
Do you work with sites you did not originally build?+
Yes. Most performance clients come to us with an existing site or app. We handle any modern stack (Next.js, React, Vue, Angular, Laravel, Django, Rails, ASP.NET Core, and even legacy PHP or WordPress).
What tools do you use to measure performance?+
Lighthouse, WebPageTest, PageSpeed Insights, and Chrome DevTools for lab data. Real User Monitoring (Vercel Analytics, DataDog RUM, New Relic Browser, or your own analytics) for field data. We report both.
Can you fix Core Web Vitals specifically?+
Yes. Core Web Vitals (LCP, INP, CLS) are the single most common ask. We address image loading, render-blocking JavaScript, layout stability, and interactivity bottlenecks systematically.
Do you handle database and backend optimisation too?+
Yes. Slow queries, missing indexes, N+1 problems, connection pooling, caching layers (Redis, edge caching), and read replicas are all part of the scope when the bottleneck is on the server side.
How do you prove the improvement to our team?+
Before-and-after Lighthouse reports, WebPageTest waterfall comparisons, RUM data showing real-user impact, and a written summary tying each metric change to a specific code or infrastructure change we made.
Do you offer ongoing performance monitoring?+
Yes. As part of a maintenance retainer we set up automated Lighthouse CI, RUM dashboards, and monthly performance reports so regressions get caught before your users notice.
Web Development suite
More engineering practices
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ExploreReady to scope your performance project?
Free technical call. Bring your requirements, we will scope honestly and share a proposal within one business day.