Slow first impression
Heavy hero media, fonts and render-blocking assets make the store feel weaker before the product even sells.
LCP pressureShopify Speed Optimisation
RexCode improves Shopify storefront performance by reducing avoidable asset weight, script drag, layout delay and mobile friction.
Core Web Vitals Diagnosis
The goal is not to chase a fake perfect score. The goal is a lighter, more stable Shopify storefront that loads, responds and scrolls better on real devices.
We look at LCP pressure, script blocking, image weight, layout shift, mobile interaction and the app stack that controls the performance ceiling.
Heavy hero media, fonts and render-blocking assets make the store feel weaker before the product even sells.
LCP pressureApps, pixels and duplicate scripts can delay interaction even when the page looks visually loaded.
App stackMobile users feel asset weight, sticky elements and third-party scripts much harder than desktop visitors.
Mobile UXLate-loading images, embeds, banners and app blocks can shift content and make the store feel unstable.
CLS cleanupSpeed Bottleneck Map
A Shopify store can be slow for different reasons. This map keeps the cleanup practical instead of blindly compressing everything.
Review image/video weight, preload behaviour and above-the-fold priority.
Check oversized assets, responsive delivery and lazy-loading opportunities.
Reduce delay from font files and avoid unnecessary visual blocking.
Review front-end app load, duplicate embeds and unused storefront features.
Check tracking snippets for excessive blocking or unnecessary duplication.
Move non-critical scripts where possible without breaking functionality.
Clean heavy sections, duplicate code paths and unnecessary DOM complexity.
Reserve image, banner and app-block space so content does not jump.
Check menus, cart drawers and sticky elements for performance friction.
Review delays around product options, add-to-cart and cart drawer behaviour.
Check image loading, sticky bars and heavy animations on smaller screens.
Recheck key templates after cleanup so speed fixes do not damage shopping flow.
Cleanup Process
Speed work needs restraint. The cleanup should improve loading and interaction without flattening the brand experience.
Measure priority templates and identify whether the issue is assets, scripts, theme code or app load.
Review image weight, fonts, third-party scripts, layout shifts and mobile interaction states.
Rank fixes by expected shopper impact, implementation risk and how much control Shopify allows.
Apply approved improvements carefully across theme assets, templates, loading behaviour and scripts.
Recheck desktop, mobile and key buying-path templates after cleanup.
Scope & Pricing
A focused pass for stores that need less storefront weight, better mobile feel and cleaner Core Web Vitals signals.
Final pricing depends on theme complexity, app stack, template count and how much third-party code controls the current performance ceiling.
Priority templates reviewed for Core Web Vitals pressure, perceived speed and mobile behaviour.
Images, video, fonts and lazy-loading patterns adjusted where they add avoidable weight.
Third-party scripts, app snippets and duplicate loads reviewed for practical improvement opportunities.
Clear summary of what changed, what improved and what still limits performance.
Who It’s For
Speed optimisation is strongest when the store already has a real theme, real apps and real templates that need cleanup rather than a full rebuild.
Stores slowed by apps, rich media, custom sections or repeated theme edits.
If the theme is fundamentally broken, speed cleanup may not solve deeper structure problems.
Brands preparing for campaigns, launches or mobile-heavy paid traffic.
Speed FAQ
Most stores can improve meaningfully, but app dependencies, third-party scripts and heavy design decisions affect the final ceiling.
The goal is to protect the visual system. Design changes are only recommended when media, animation or layout choices are directly hurting the experience.
We review app impact and recommend removal only when it makes sense commercially and technically. Some apps are necessary; some are just dead weight.
Yes. The cleanup considers LCP, CLS and interaction performance, but the recommendations stay practical for Shopify and your current theme.
No. Perfect scores are often unrealistic on commercial Shopify stores with apps, pixels and real merchandising needs. The target is meaningful improvement without breaking the business.
Shopify Projects
Client Conversations
Store Improvements
Start with a free review and get practical recommendations for improving your store experience, structure and performance.
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