Shopify Page Speed App Development

I need a developer who can create a Shopify app that directly improves my store’s page-load speed. My main pain point is how quickly the first meaningful paint appears for shoppers, so the app must focus on reducing overall page rendering time rather than simply compressing images in isolation.

The ideal build will:
• Plug in as a Shopify-approved app or private theme extension without breaking existing liquid customisations.
• Optimise critical assets automatically (e.g., splitting and deferring non-essential JavaScript, inlining above-the-fold CSS, compressing and caching on the fly).
• Offer flexible toggles so I can experiment with techniques such as lazy image loading, CSS/JS minification, and intelligent browser caching without touching code.

After installation I expect a noticeable lift in Lighthouse and Core Web Vitals scores, plus a simple in-dashboard readout so I can verify the improvement myself. If you have prior experience launching speed-boosting Shopify apps or working with Theme Kit, Storefront API, or Shopify CLI, please tell me how you’ll architect the optimisation workflow and keep the app compatible with future platform updates.