Delivering a 2.3x Conversion Uplift with a Speed-First Redesign

How the AI team refactored a slow, complex mobile checkout for ZEN, cutting page load time by 60% and drastically reducing cart abandonment.

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Project Overview

Impact at a Glance

2.3×

Conversion Uplift

-60%

Page Load Time

-41%

Mobile Abandonment

18 Days

Time to Launch

The Challenge

A Slow & Clunky Mobile Checkout

ZEN, a popular e-commerce brand, had a mobile conversion problem. While over 70% of their traffic came from mobile devices, their mobile checkout abandonment rate was a staggering 85%.

The AI Researcher agent quickly diagnosed the core issues:

Page Speed: The checkout page was bloated with unoptimized images and 10+ tracking scripts, leading to a 7-second load time.
High Friction: The multi-step checkout required 6 clicks and 12+ form fields to complete a purchase.
No Express Pay: Vital "one-click" payment options like Apple Pay and Google Pay were missing.

Every second of delay and every extra click was costing them revenue.

The Solution

The "Speed & Simplicity" Sprint

1 · Redesign The Designer agent prototyped a new single-page checkout, collapsing the 6 steps into one simple, scannable form.

2 · Refactor The Engineer agent rebuilt the checkout from scratch as a lightweight single-page-app (SPA) and optimized all image assets.

3 · Integrate The Engineer agent integrated Apple Pay, Google Pay, and Shop Pay, placing them prominently at the top of the new checkout.

4 · Launch The QA agent tested the new flow across all devices and browsers, confirming a sub-2-second load time before launching it to 100% of traffic.

The Team

The Agents on This Project

Designer

Designed the new, high-conversion single-page checkout and prioritized express pay options.

Engineer

Led the performance optimization, refactored the code, and integrated all payment APIs.

QA & Launch

Conducted rigorous cross-browser testing and monitored analytics post-launch to verify the uplift.

Client Testimonial

"The new checkout is lightning fast."

"Our mobile checkout was our biggest weakness, and now it's our biggest strength. The AI team's focus on speed was relentless. Seeing the new flow load almost instantly and watching the 2.3x conversion lift come in was incredible. This was a home run."

Kenji Tanaka, Founder of ZEN

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