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Software Performance Optimization

Up to 500% faster website in 5 business days, or your money back

Posted byMantas Karmaza
2 days ago
  • Back-End Development
  • Performance Optimization
  • Front-End Development
  • E-Commerce Development
  • Debugging
Pricing
Price on request
Up to 500% faster website in 5 business days, or your money back cover

Overview

Your website is slow. You know it. Your customers know it. Google knows it. And every extra second of load time quietly bleeds sales. Visitors don't wait. They hit "back" and buy from someone faster. Here's the offer: Up to 500% faster website. In 5 business days. If we don't hit the results we agree on, you get your money back. What you get: • Full speed audit: what's slowing you down and why • Image, code, script and database optimization • Caching, CDN and server configuration (Cloudflare and more) • Core Web Vitals improvements for better Google rankings • Before and after report with real measurements Works on WordPress, WooCommerce, Shopify and custom sites. Real example: Draco Slides. Mobile PageSpeed went from 53 to 91 (+265% mobile speed), and conversions rose 23%. Why me: 5+ years, 200+ US & EU brands, 4.9 rating. Send me your URL. I'll show you how fast it could be, and what that's worth to you.

Deliverables

  • Speed audit with before measurements and root causes
  • Image, code, script and database optimization
  • Caching, CDN and server configuration
  • Core Web Vitals improvements
  • Before and after report with real measurements

How it works

  1. 1Free call: send your URL, I show you what's slowing it down
  2. 2Agree on target results and price before work starts
  3. 3Optimize everything in 5 business days
  4. 4Deliver the before and after report, or refund if targets aren't hit

FAQ

No. Changes are tested before they go live, and your site keeps working throughout.

About the seller

Mantas Karmaza
€100M+ added via 4,000+ A/B tests for 360Cycles, Draco and over 200 other DTC brands
Lithuania

Most e-commerce sites bleed revenue. I plug the leaks, so the traffic you already pay for turns into orders. 10+ years in e-commerce growth, from RRR.lt to Flatyz.com and CCS Baltic. Founder of Mantas Digital (Vilnius, 2021). The numbers: • 4,000+ A/B tests run, €100M+ in extra revenue for clients across the US & EU • 200+ DTC brands helped • 400+ visual CRO audits delivered in 2026 • 4.9 rating across Clutch, Google, Trustpilot & Facebook (50+ verified reviews) Recent results: • 360 Degrees Cycles: €1.5M+ in sales on €30k+ invested • MeriWoolArt: +42% conversions • Draco Slides: +23% conversions, +265% mobile speed • Waterpik: 22% more orders What I do: CRO & UX audits, A/B testing, Shopify, WooCommerce & WordPress builds, speed, SEO, email & business automation, AI integration. If you want pretty, hire a designer. If you want profit, message me. Case studies: mantasdigital.com/case-studies

  • Member since2026
View Mantas's profile

More from Mantas

10% more conversions in 60 days, same traffic, or your money backWebsite care so your site never breaks the day your sales spikeSEO that brings buyers ready to pay, not just pretty traffic graphsFind out exactly why visitors leave without buying, and fix it
PricingPrice on request

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