--- title: "Koby Feldmos: Mobile LCP 24.8s to 2.4s & Passing Core Web Vitals | Case Study" description: "Koby Feldmos needed speed optimization on their Shopify store to improve the shopping experience and boost conversion rates." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "Article", "headline": "Liquid Template & App Script Optimization for Shopify Store", "description": "Koby Feldmos needed speed optimization on their Shopify store to improve the shopping experience and boost conversion rates.", "publisher": { "@type": "Organization", "name": "PageSpeed Matters" } }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.pagespeedmatters.com/" }, { "@type": "ListItem", "position": 2, "name": "Proof", "item": "https://www.pagespeedmatters.com/proof" }, { "@type": "ListItem", "position": 3, "name": "Case Studies", "item": "https://www.pagespeedmatters.com/proof/case-studies" }, { "@type": "ListItem", "position": 4, "name": "Koby Feldmos" } ] } ] --- [![PageSpeed Matters](/assets/logo-DtyG_mQE.png)](/) - [Benefits](/why-speed-matters) - [Services](/services) - [ROI Calculator](/roi) - [Pricing](/pricing) - [Proof](/proof) - [Resources](/resources) - [About](/about) [Speed Audit](/contact) [Let's Talk](/contact) [![PageSpeed Matters](/assets/logo-DtyG_mQE.png)](/) [Benefits](/why-speed-matters)[Services](/services)[ROI Calculator](/roi)[Pricing](/pricing)[Proof](/proof)[Resources](/resources)[About](/about) Popular Services [ Core Web Vitals Optimization ](/services/core-web-vitals-optimization)[ ![WordPress Speed Optimization](data:image/svg+xml,%3csvg%20role='img'%20viewBox='0%200%2024%2024'%20xmlns='http://www.w3.org/2000/svg'%3e%3ctitle%3eWordPress%3c/title%3e%3cpath%20d='M21.469%206.825c.84%201.537%201.318%203.3%201.318%205.175%200%203.979-2.156%207.456-5.363%209.325l3.295-9.527c.615-1.54.82-2.771.82-3.864%200-.405-.026-.78-.07-1.11m-7.981.105c.647-.03%201.232-.105%201.232-.105.582-.075.514-.93-.067-.899%200%200-1.755.135-2.88.135-1.064%200-2.85-.15-2.85-.15-.585-.03-.661.855-.075.885%200%200%20.54.061%201.125.09l1.68%204.605-2.37%207.08L5.354%206.9c.649-.03%201.234-.1%201.234-.1.585-.075.516-.93-.065-.896%200%200-1.746.138-2.874.138-.2%200-.438-.008-.69-.015C4.911%203.15%208.235%201.215%2012%201.215c2.809%200%205.365%201.072%207.286%202.833-.046-.003-.091-.009-.141-.009-1.06%200-1.812.923-1.812%201.914%200%20.89.513%201.643%201.06%202.531.411.72.89%201.643.89%202.977%200%20.915-.354%201.994-.821%203.479l-1.075%203.585-3.9-11.61.001.014zM12%2022.784c-1.059%200-2.081-.153-3.048-.437l3.237-9.406%203.315%209.087c.024.053.05.101.078.149-1.12.393-2.325.609-3.582.609M1.211%2012c0-1.564.336-3.05.935-4.39L7.29%2021.709C3.694%2019.96%201.212%2016.271%201.211%2012M12%200C5.385%200%200%205.385%200%2012s5.385%2012%2012%2012%2012-5.385%2012-12S18.615%200%2012%200'/%3e%3c/svg%3e) WordPress Speed Optimization ](/services/wordpress-speed-optimization)[ ![WooCommerce Speed Optimization](data:image/svg+xml,%3csvg%20role='img'%20viewBox='0%200%2024%2024'%20xmlns='http://www.w3.org/2000/svg'%3e%3ctitle%3eWoo%3c/title%3e%3cpath%20d='M2.227%204.857A2.228%202.228%200%20000%207.094v7.457c0%201.236%201.001%202.237%202.237%202.237h5.36l2.39%202.076-.462-2.076h4.238a2.228%202.228%200%20002.237-2.237V7.094a2.228%202.228%200%2000-2.237-2.237H2.227zm4.636%201.885h.053c.115.002.22.04.316.117a.46.46%200%2001.183.336c.014.098-.003.177-.058.283-.23.422-.418%201.131-.57%202.12-.147.957-.202%201.706-.166%202.24a.694.694%200%2001-.07.387.377.377%200%2001-.31.213c-.153.01-.314-.06-.466-.22-.548-.558-.982-1.393-1.3-2.504-.382.752-.664%201.316-.846%201.692-.347.665-.643%201.005-.888%201.022-.16.012-.295-.122-.412-.403-.302-.771-.624-2.258-.97-4.464a.526.526%200%2001.096-.393c.083-.113.205-.168.37-.18.3-.024.47.114.511.42.183%201.23.384%202.272.596%203.124l1.286-2.453c.117-.224.265-.34.443-.352.258-.018.42.147.483.495.147.78.333%201.445.558%202.01.152-1.493.412-2.57.779-3.234a.452.452%200%2001.386-.26zm2.288.637c.099%200%20.205.01.318.035.411.088.728.313.938.683.19.318.286.699.286%201.156%200%20.607-.154%201.157-.46%201.663-.355.587-.813.884-1.383.884a1.557%201.557%200%2001-.318-.039.763.763%200%2001-.141-.05%201.351%201.351%200%2001-.799-.63%202.277%202.277%200%2001-.28-1.166c0-.605.151-1.158.457-1.658.358-.59.818-.88%201.382-.878zm3.687%200c.099%200%20.205.01.318.035.418.088.728.313.938.683.19.318.283.699.283%201.156%200%20.607-.153%201.157-.459%201.663-.354.587-.812.884-1.382.884a1.557%201.557%200%2001-.318-.039%201.352%201.352%200%2001-.94-.68%202.277%202.277%200%2001-.283-1.166c0-.605.154-1.158.46-1.658.358-.59.818-.88%201.383-.878zm-3.504.636a.636.636%200%2000-.534.373%201.908%201.908%200%2000-.354%201.13c0%20.17.035.354.106.536.087.23.207.35.347.38.147.029.306-.034.478-.187.218-.195.363-.483.446-.87.028-.137.041-.283.041-.436%200-.171-.035-.354-.106-.535-.088-.23-.206-.35-.347-.38a.436.436%200%2000-.077-.011zm3.688%200a.636.636%200%2000-.535.373%201.908%201.908%200%2000-.354%201.13c0%20.17.036.354.107.536.086.23.206.35.347.38.147.029.306-.034.478-.187.217-.195.362-.483.445-.87.024-.137.041-.283.041-.436%200-.171-.035-.354-.106-.535-.088-.23-.206-.35-.347-.38a.436.436%200%2000-.076-.011z'/%3e%3c/svg%3e) WooCommerce Speed Optimization ](/services/woocommerce-speed-optimization)[ ![Shopify Speed Optimization](data:image/svg+xml,%3csvg%20role='img'%20viewBox='0%200%2024%2024'%20xmlns='http://www.w3.org/2000/svg'%3e%3ctitle%3eShopify%3c/title%3e%3cpath%20d='M15.337%2023.979l7.216-1.561s-2.604-17.613-2.625-17.73c-.018-.116-.114-.192-.211-.192s-1.929-.136-1.929-.136-1.275-1.274-1.439-1.411c-.045-.037-.075-.057-.121-.074l-.914%2021.104h.023zM11.71%2011.305s-.81-.424-1.774-.424c-1.447%200-1.504.906-1.504%201.141%200%201.232%203.24%201.715%203.24%204.629%200%202.295-1.44%203.76-3.406%203.76-2.354%200-3.54-1.465-3.54-1.465l.646-2.086s1.245%201.066%202.28%201.066c.675%200%20.975-.545.975-.932%200-1.619-2.654-1.694-2.654-4.359-.034-2.237%201.571-4.416%204.827-4.416%201.257%200%201.875.361%201.875.361l-.945%202.715-.02.01zM11.17.83c.136%200%20.271.038.405.135-.984.465-2.064%201.639-2.508%203.992-.656.213-1.293.405-1.889.578C7.697%203.75%208.951.84%2011.17.84V.83zm1.235%202.949v.135c-.754.232-1.583.484-2.394.736.466-1.777%201.333-2.645%202.085-2.971.193.501.309%201.176.309%202.1zm.539-2.234c.694.074%201.141.867%201.429%201.755-.349.114-.735.231-1.158.366v-.252c0-.752-.096-1.371-.271-1.871v.002zm2.992%201.289c-.02%200-.06.021-.078.021s-.289.075-.714.21c-.423-1.233-1.176-2.37-2.508-2.37h-.115C12.135.209%2011.669%200%2011.265%200%208.159%200%206.675%203.877%206.21%205.846c-1.194.365-2.063.636-2.16.674-.675.213-.694.232-.772.87-.075.462-1.83%2014.063-1.83%2014.063L15.009%2024l.927-21.166z'/%3e%3c/svg%3e) Shopify Speed Optimization ](/services/shopify-speed-optimization)[ ![Wix Speed Optimization](data:image/svg+xml,%3csvg%20role='img'%20viewBox='0%200%2024%2024'%20xmlns='http://www.w3.org/2000/svg'%3e%3ctitle%3eWix%3c/title%3e%3cpath%20d='m0%207.354%202.113%209.292h.801a1.54%201.54%200%200%200%201.506-1.218l1.351-6.34a.171.171%200%200%201%20.167-.137c.08%200%20.15.058.167.137l1.352%206.34a1.54%201.54%200%200%200%201.506%201.218h.805l2.113-9.292h-.565c-.62%200-1.159.43-1.296%201.035l-1.26%205.545-1.106-5.176a1.76%201.76%200%200%200-2.19-1.324c-.639.176-1.113.716-1.251%201.365l-1.094%205.127-1.26-5.537A1.33%201.33%200%200%200%20.563%207.354H0zm13.992%200a.951.951%200%200%200-.951.95v8.342h.635a.952.952%200%200%200%20.951-.95V7.353h-.635zm1.778%200%203.158%204.66-3.14%204.632h1.325c.368%200%20.712-.181.918-.486l1.756-2.59a.12.12%200%200%201%20.197%200l1.754%202.59c.206.305.55.486.918.486h1.326l-3.14-4.632L24%207.354h-1.326c-.368%200-.712.181-.918.486l-1.772%202.617a.12.12%200%200%201-.197%200L18.014%207.84a1.108%201.108%200%200%200-.918-.486H15.77z'/%3e%3c/svg%3e) Wix Speed Optimization ](/services/wix-speed-optimization)[ ![BigCommerce Speed Optimization](data:image/svg+xml,%3csvg%20role='img'%20viewBox='0%200%2024%2024'%20xmlns='http://www.w3.org/2000/svg'%3e%3ctitle%3eBigCommerce%3c/title%3e%3cpath%20d='M12.645%2013.663h3.027c.861%200%201.406-.474%201.406-1.235%200-.717-.545-1.234-1.406-1.234h-3.027c-.1%200-.187.086-.187.172v2.125c.015.1.086.172.187.172zm0%204.896h3.128c.961%200%201.535-.488%201.535-1.35%200-.746-.545-1.35-1.535-1.35h-3.128c-.1%200-.187.087-.187.173v2.34c.015.115.086.187.187.187zM23.72.053l-8.953%208.93h1.464c2.281%200%203.63%201.435%203.63%203%200%201.235-.832%202.14-1.722%202.541-.143.058-.143.259.014.316%201.033.402%201.765%201.48%201.765%202.742%200%201.78-1.19%203.202-3.5%203.202h-6.342c-.1%200-.187-.086-.187-.172V13.85L.062%2023.64c-.13.13-.043.359.143.359h23.631a.16.16%200%200%200%20.158-.158V.182c.043-.158-.158-.244-.273-.13z'/%3e%3c/svg%3e) BigCommerce Speed Optimization ](/services/bigcommerce-speed-optimization)[ ![Webflow Speed Optimization](data:image/svg+xml,%3csvg%20role='img'%20viewBox='0%200%2024%2024'%20xmlns='http://www.w3.org/2000/svg'%3e%3ctitle%3eWebflow%3c/title%3e%3cpath%20d='m24%204.515-7.658%2014.97H9.149l3.205-6.204h-.144C9.566%2016.713%205.621%2018.973%200%2019.485v-6.118s3.596-.213%205.71-2.435H0V4.515h6.417v5.278l.144-.001%202.622-5.277h4.854v5.244h.144l2.72-5.244H24Z'/%3e%3c/svg%3e) Webflow Speed Optimization ](/services/webflow-speed-optimization)[ ![Squarespace Speed Optimization](data:image/svg+xml,%3csvg%20role='img'%20viewBox='0%200%2024%2024'%20xmlns='http://www.w3.org/2000/svg'%3e%3ctitle%3eSquarespace%3c/title%3e%3cpath%20d='M22.655%208.719c-1.802-1.801-4.726-1.801-6.564%200l-7.351%207.35c-.45.45-.45%201.2%200%201.65.45.449%201.2.449%201.65%200l7.351-7.351c.899-.899%202.362-.899%203.264%200%20.9.9.9%202.364%200%203.264l-7.239%207.239c.9.899%202.362.899%203.263%200l5.589-5.589c1.836-1.838%201.836-4.763.037-6.563zm-2.475%202.437c-.451-.45-1.201-.45-1.65%200l-7.354%207.389c-.9.899-2.361.899-3.262%200-.45-.45-1.2-.45-1.65%200s-.45%201.2%200%201.649c1.801%201.801%204.726%201.801%206.564%200l7.351-7.35c.449-.487.449-1.239.001-1.688zm-2.439-7.35c-1.801-1.801-4.726-1.801-6.564%200l-7.351%207.351c-.45.449-.45%201.199%200%201.649s1.2.45%201.65%200l7.395-7.351c.9-.899%202.371-.899%203.27%200%20.451.45%201.201.45%201.65%200%20.421-.487.421-1.199-.029-1.649h-.021zm-2.475%202.437c-.45-.45-1.2-.45-1.65%200l-7.351%207.389c-.899.9-2.363.9-3.265%200-.9-.899-.9-2.363%200-3.264l7.239-7.239c-.9-.9-2.362-.9-3.263%200L1.35%208.719c-1.8%201.8-1.8%204.725%200%206.563%201.801%201.801%204.725%201.801%206.564%200l7.35-7.351c.451-.488.451-1.238%200-1.688h.002z'/%3e%3c/svg%3e) Squarespace Speed Optimization ](/services/squarespace-speed-optimization) [Book a Call](/contact) ![](/assets/koby-feldmos-C_RPONrN.png) [Back to Case Studies](/proof/case-studies) Speed Optimization # Liquid Template & App Script Optimization for Shopify Store E-Commerce · < 10 Employees · Shopify 90% Mobile LCP Reduction 100 Desktop Perf Score 89% Mobile SI Reduction ## Project Overview Koby Feldmos needed speed optimization on their Shopify store to improve the shopping experience and boost conversion rates. The store's theme was loading slowly due to excessive app scripts, unoptimized images, and render-blocking resources impacting the customer experience. ## Goals & Objectives The primary goal of this project was to improve Google's Core Web Vitals, site speed, and overall user experience and usability. Our primary goals were to: - Reduce mobile LCP below 2.5s - Achieve perfect desktop performance score - Eliminate Total Blocking Time on both devices Company Name Koby Feldmos Company Size < 10 Employees Industry E-Commerce Platform Shopify ## Outcomes: Core metrics that improved over the duration of the project. 90% Mobile LCP Reduction Mobile LCP dropped from 24.8s to 2.4s, a 90% improvement. 100 Desktop Perf Score Desktop performance score improved from 62 to a perfect 100. 89% Mobile SI Reduction Mobile Speed Index improved from 19.4s to 2.1s, an 89% improvement. ## Before vs After Before Metric Score Mobile Perf Score 58 Desktop Perf Score 62 Mobile FCP 3.5s Desktop FCP 0.6s Mobile LCP 24.8s Desktop LCP 3.6s Mobile TBT 110ms Desktop TBT 30ms Mobile CLS 0 Desktop CLS 0.224 Mobile SI 19.4s Desktop SI 3.1s After Metric Score Mobile Perf Score 96 Desktop Perf Score 100 Mobile FCP 2.1s Desktop FCP 0.5s Mobile LCP 2.4s Desktop LCP 0.7s Mobile TBT 0ms Desktop TBT 0ms Mobile CLS 0 Desktop CLS 0 Mobile SI 2.1s Desktop SI 0.6s ## Our Approach A systematic, step-by-step process tailored to Koby Feldmos's needs. 1 ### Shopify Performance Audit Identified bottlenecks in theme, apps, and media. 2 ### Theme Optimization Streamlined Liquid templates and CSS delivery. 3 ### App Script Management Deferred and optimized third-party app loading. 4 ### Image Optimization Optimized product and collection images. 5 ### Performance Validation Confirmed improvements with testing tools. ## Key Takeaways Shopify app scripts often account for the majority of load time. Theme optimization delivers consistent improvements across all pages. Faster stores convert better, speed is a competitive advantage. ## Latest Case Studies [![NSAR](/assets/nsar-CA3Du5tg.jpg) Core Web Vitals WooCommerce NSAR E-Commerce WooCommerce Service Animal Support | < 10 Employees ### How We Helped National Service Animal Registry Improve Site Speed and Pass Core Web Vitals Read Case Study](/proof/case-studies/nsarco) [![Try Something More](/assets/try-something-more-D54ZNz-1.png) Core Web Vitals WordPress Try Something More Content WordPress Lifestyle & Content | < 10 Employees ### Plugin Reduction & Template-Level CWV Optimization for Content-Heavy WordPress Site Read Case Study](/proof/case-studies/try-something-more) [![Her Fantasy Box](/assets/her-fantasy-box-CNC8Ngq7.webp) Core Web Vitals Shopify Plus Her Fantasy Box E-Commerce Shopify Plus Health & Wellness | < 50 Employees ### How We Helped Her Fantasy Box Improve Site Speed by 300% and Pass Core Web Vitals Read Case Study](/proof/case-studies/her-fantasy-box) [![Sana Benefits](/assets/sana-benefits-BJOIqgen.png) Core Web Vitals WordPress Sana Benefits B2B WordPress Insurance | 200-500 Employees ### How We Helped Sana Benefits Improve Site Speed by 250% and Pass Core Web Vitals Read Case Study](/proof/case-studies/sana-benefits) [![Whistleblower Partners](/assets/whistleblower-partners-7MU0S4cS.webp) Core Web Vitals Migrated from Squarespace to WordPress Whistleblower Partners Legal Migration Legal Services | 11 to 50 Employees ### How We Helped Whistleblower Partners Improve Site Speed and Migrate 200+ Pages to WordPress Read Case Study](/proof/case-studies/whistleblower-partners) [![Vibeszn](/assets/vibeszn-CgzK4Wvb.png) Core Web Vitals Shopify Vibeszn E-Commerce Shopify Lifestyle & Apparel | < 10 Employees ### Theme & App Script Optimization for Shopify Core Web Vitals Read Case Study](/proof/case-studies/vibeszn) [![Pure Parima](/assets/pure-parima-DnL2KsUd.webp) Core Web Vitals Shopify Pure Parima E-Commerce Shopify Home Furnishings | < 10 Employees ### How We Helped Pure Parima Improve Site Speed and Pass Core Web Vitals Read Case Study](/proof/case-studies/pure-parima) [![Therapevo](/assets/therapevo-BaKBbgzb.webp) Core Web Vitals WordPress Therapevo Healthcare WordPress Therapy and Counseling | < 10 Employees ### How We Helped Therapevo Improve Site Speed and Pass Core Web Vitals Read Case Study](/proof/case-studies/therapevo) ## Want Results Like These? 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