What We Optimize
We focus on making your site faster where it matters most — for users, search engines, and revenue.
Loading Speed
Largest Contentful Paint (LCP) optimization, critical rendering path improvements, and server-side rendering efficiency.
Interactivity
Interaction to Next Paint (INP) fixes, debounced inputs, and responsive event handling for snappy user experiences.
Rendering Stability
Cumulative Layout Shift (CLS) elimination without introducing visual regressions across themes and configurations.
JavaScript Execution
Bundle size optimization, code splitting strategies, expensive re-render elimination, and modern React optimizations.
Data Fetching
GraphQL HTTP caching, N+1 query resolution, server-side computation, and smarter hydration strategies.
SEO-Critical Paths
SEO-safe lazy loading, SSR efficiency improvements, and rendering strategies that protect search rankings.
The Cost of a Slow Site
Your site's performance directly impacts your bottom line:
Amazon found that every 100ms of latency costs them 1% in sales
Google confirmed that sites in the bottom quartile of Core Web Vitals see measurably lower search rankings
53% of mobile users abandon pages that take more than 3 seconds to load (Google)
A 1-second delay in page load time can reduce conversions by 7% (Akamai)
Your performance isn't just a technical metric — it's revenue.
From our work at Popmenu:
What could better performance mean for your business?
Why Performance Work Feels Risky
You know your site needs to be faster. But you also know:
Performance optimizations can break critical features
SEO changes can tank your rankings
Visual regressions can erode user trust
Your team doesn't have bandwidth to fix what breaks
That's exactly why we built our process around safety.
Our regression testing infrastructure means you get speed gains without the risk. Every optimization is validated through automated performance, visual, and accessibility testing before it reaches production.
How We Optimize Safely
Performance work only matters if it ships confidently. Our testing infrastructure makes optimization repeatable and low-risk.
Performance Regression Testing
Continuous performance monitoring in CI/CD.
- Catch regressions in LCP, INP, and other vitals before production
- Protect SEO rankings and conversion rates with quantifiable metrics
Visual Regression Testing
Automated screenshot comparisons.
- Ensures performance changes never break layout or styling
- Essential for highly customizable, theme-driven products
Accessibility Testing
Automated accessibility checks baked into workflows.
- Reduces legal and compliance risks
- Improves inclusivity and indirectly strengthens SEO
Optimization without fear.
How We Make Your Site Faster
A structured approach that delivers results at every stage.
High-Impact Wins
Fast wins with clear ROI and predictable impact.
- Critical Rendering Path improvements
- Responsive images with server-side scaling
- Lazy loading with SEO-safe SSR strategies
- INP fixes (e.g. debounced inputs, CSS-based animations)
- Small, targeted optimizations with large measurable gains
Distinct improvements to Core Web Vitals with effects easy to estimate and verify.
Deep System-Level Improvements
Harder problems, smaller gains — but essential at scale. Examples include:
- GraphQL HTTP caching
- Fixing layout shifts without visual regressions
- Performance metadata collection via automated page analysis
- Server-side JavaScript execution with cached results
- Bundle splitting corrections
- Resolving GQL N+1 issues
- Large-scale React 19 migration
- Continuous optimization of individual React components
~1–5% improvement per metric. Harder to predict, but cumulative and durable.
Proven Results: Popmenu Case Study
7+ years of performance optimization for a platform powering thousands of production websites.
What You Get
Faster load times
Dramatically improved load times that directly impact user engagement and conversions.
Reduced blocking time
Snappy, responsive interactions that keep users engaged and reduce frustration.
Smaller initial downloads
Optimized bundles for faster loads on any network connection.
Improved Lighthouse scores
Measurable, verifiable performance improvements you can track.
Confidence shipping changes
Automated regression testing means performance improvements ship without fear.
Repeatable optimization process
Your team maintains and extends performance gains long after our engagement ends.
What Makes This Approach Work
Proven at Scale
Thousands of production sites, real traffic, real revenue impact. We've seen what works across diverse applications.
Performance Science
Led by Roman Kuksin, applying precision engineering — not guesswork. Data-driven decisions at every step.
Trusted Execution
We optimize without breaking SEO, UX, or design systems. Your site gets faster without regressions.
Common Questions
Will this break our existing features?
No. Our visual regression testing catches layout and styling issues before they reach production. We've optimized thousands of sites without introducing regressions.
How do I know this will actually improve my business metrics?
We track Core Web Vitals alongside business KPIs — conversion rates, bounce rates, SEO rankings. Every optimization is measured against real outcomes, not just technical scores.
What if we don't have a performance problem yet?
Even better. Performance regression testing prevents fast pages from getting slow. It's easier (and cheaper) to maintain performance than to fix it later.
Do you only work with React apps?
While we specialize in React, our optimization principles apply to any modern web stack. Core Web Vitals optimization is platform-agnostic.
How is this different from hiring a performance consultant or doing it ourselves?
We've spent 7+ years optimizing the same production platform (Popmenu), so we've seen what works at scale. You get battle-tested processes, not experimental approaches.
Ready to Make Your App Faster?
Schedule a call with Justin Gordon and Roman Kuksin to explore how ShakaCode can deliver measurable performance gains and safe optimizations for your company.