From Problem to Perfect Score
Full methodology, results, and business impact — tested on live storefront.
The Problem — A Slow Site Hurting Sales
LANI SILK sells premium 100% Mulberry Silk sleepwear to US consumers. Despite excellent products and strong branding, their Shopify store had critical performance issues threatening conversion rates and Google search rankings.
Key issues identified in the audit:
• Mobile LCP: 6.9s — 2.8x slower than Google's 2.5s threshold
• Total Blocking Time: 1,130ms mobile / 1,500ms desktop — severe JavaScript blocking
• Speed Index: 15.8s on mobile — page appears incomplete for nearly 16 seconds
• GTmetrix Grade: D — only 57% Performance and 2.2s Total Blocking Time
Our Approach — Optimization Under Real Conditions
Velra Media optimized LANI SILK's Shopify store while preserving all brand visuals and live UX elements — including the promotional popup and chat widget. No content was removed to artificially inflate scores.
What We Did:
• Full Lighthouse audit across mobile and desktop using PageSpeed Insights and GTmetrix
• Converted all hero and product images to WebP — reducing file sizes without quality loss
• Eliminated render-blocking JavaScript — reducing Total Blocking Time from 1,130ms to 0ms
• Deferred non-critical third-party scripts: chat widget, analytics, marketing pixels
• Optimized LCP hero image with preload hints and proper sizing attributes
• Resolved Cumulative Layout Shift caused by web fonts and dynamic content
• Cleaned unused Shopify app scripts and CSS from the critical render path
Results — Before vs. After
Google PageSpeed Insights:
• Mobile: 37 → 99 (+168%) · Desktop: 54 → 92 (+70%)
• LCP Mobile: 6.9s → 1.2s (83% faster)
• LCP Desktop: 1.6s → 0.5s (69% faster)
• TBT Mobile: 1,130ms → 0ms (100% eliminated)
• TBT Desktop: 1,500ms → 0ms (100% eliminated)
• FCP Mobile: 3.5s → 1.2s · Speed Index: 15.8s → 3.2s
GTmetrix:
• Grade: D → A · Performance: 57% → 99% (+42 pts)
• Structure: 79% → 95% · LCP: 1.2s → 283ms (76% faster)
• TBT: 2.2s → 65ms (97% faster) · CLS: 0.01 → 0
Final PSI Scores — Feb 23, 2026:
Performance 93 / 92 ✅
Accessibility 89 / 86 ✅
Best Practices 96 / 100 ✅
SEO 100 / 100 ✅
What These Numbers Mean for the Business
The scores above are measured results. The business effects below are the outcomes these technical gains typically support — based on published industry research, not conversion figures measured on this specific store.
- Faster content rendering: LCP 6.9s → 1.2s means shoppers see product content roughly 6x sooner — the moment that decides whether a mobile visitor stays or leaves.
- Instant interactivity: Total Blocking Time eliminated to 0ms means taps and clicks respond without lag — no frozen "add to cart" during the first seconds of load.
- Stronger Core Web Vitals: LCP and INP moved from Poor into Google's 'Good' range, and Total Blocking Time was eliminated. Google treats Core Web Vitals as part of its page experience signals — a supporting factor in Search, not a standalone ranking lever.
- Better perceived quality: a fast, smooth load aligns the browsing experience with the premium positioning of a luxury silk brand.
- Cleaner technical foundation: a 100/100 SEO score and reduced script bloat support crawlability and long-term maintainability.
Faster sites are widely associated with lower bounce and higher conversion (Google /Deloitte, "Milliseconds Make Millions," 2020). Actual revenue impact depends on each store's traffic, pricing, and funnel — we report the performance gains we can measure and verify.
Evidence Snapshot — Test Conditions
🌐 URL Tested: https://lanisilk.com/
🛠 Tools: Google PageSpeed Insights (Lighthouse) + GTmetrix (Chrome 142, Lighthouse 12.6.1)
📅 Before: GTmetrix Feb 2, 2026 · PageSpeed same period
📅 After: PageSpeed Feb 23, 2026 · GTmetrix Feb 2, 2026 (post-optimization)
🖥 Test Server: GTmetrix Seattle, WA, USA
🔴 Live Conditions: Promotional popup + chat widget ACTIVE during all tests
⚠️ PSI and GTmetrix use different scoring engines — scores are not directly comparable. Both confirm the same direction of improvement.
✅ Scoring 92–99 on a live site with active third-party scripts is significantly harder than on a stripped-down environment.
