Your Store Is Slow.
That's a Revenue Problem.

Shopify speed optimization is the process of engineering your store's JavaScript payload, Liquid templates, and asset loading to reduce page load time — specifically Largest Contentful Paint (LCP) and Cumulative Layout Shift (CLS). At Webulux, this means manually removing ghost app scripts, refactoring architectural bottlenecks in your Liquid code, and optimizing asset delivery — not running Lighthouse and following generic recommendations that any developer could copy from Google's documentation. The goal is always the same: a faster store that converts more of the traffic you're already paying to acquire.

Webulux's speed optimization service is project-based with a custom quote after your free Revenue Leak Audit. We don't publish fixed pricing because the scope depends entirely on your store's specific technical debt — a store with 3 ghost scripts and minor Liquid bloat takes substantially less work than a store with 15 ghost scripts and 4 years of accumulated theme customizations. Your audit includes a cost estimate before you commit to anything. Most Speed Sprint engagements fall within a predictable range once we've seen the audit findings.

Most Webulux speed optimization engagements are completed and deployed within 14–21 days from audit delivery. Ghost script removal is typically complete within the first week and produces an immediate LCP improvement — which is why most clients see their first measurable result within 7 days of engagement start. The full process — audit, ghost script removal, Liquid refactoring, asset optimization, and Core Web Vitals verification — runs across 21 days, followed by 30 days of post-deployment monitoring to confirm the lift holds under real traffic.

Our target is LCP under 1.5 seconds on mobile, verified against real Chrome User Experience Report (CrUX) data — not lab conditions. Our average client moves from 4.8 seconds to 1.2 seconds. Individual results depend on your store's technical debt: stores with more ghost scripts and Liquid bloat tend to see larger LCP reductions because there is more to remove. If we don't hit LCP under 1.5s in the initial engagement, we continue working at no additional cost until we do.

No. Our speed optimization process works entirely inside your existing theme and JavaScript layer — we never change your design, layout, or visual presentation. Your store looks identical after optimization; it loads significantly faster. Every change we make is documented with before/after snapshots of the affected code. We run a full visual regression check before sign-off to confirm nothing has changed visually. The only thing that changes is what happens underneath — in the code your customers never see.

Ghost app scripts are JavaScript files left behind by Shopify apps that have been uninstalled. When you uninstall a Shopify app from your admin dashboard, the app is removed from your subscription — but the code it injected into your Liquid theme files often remains, continuing to load on every page view. A store that has installed and deleted 10+ apps over its lifetime typically carries 300–900kb of dead JavaScript that serves no function but actively slows every page load. Ghost scripts are one of the most common — and most impactful — causes of slow Shopify mobile performance, and they're invisible to Lighthouse and most automated audit tools.