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 ✅
Business Impact — What These Numbers Mean
• Stronger Google rankings: Core Web Vitals moved from Poor to Excellent — a direct ranking signal in Google's Page Experience algorithm
• Lower mobile bounce rate: LCP 6.9s → 1.2s — shoppers see product content nearly 6x faster before deciding to leave
• Higher add-to-cart conversion: TBT eliminated (0ms) — tap/click interactions respond instantly
• Premium brand perception: Fast, smooth load experience aligns with the luxury positioning of a silk sleepwear brand
• Stronger technical SEO: 100/100 SEO score supports crawlability and indexability best practices
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.
