Quantum SaaS Dashboard

The Problem

Quantum runs a SaaS dashboard that its customers use every working day — and those customers were waiting. The platform's core pages took over six seconds to become interactive on typical office connections, with a login page that sat unresponsive while dozens of scripts loaded. Support tickets about slowness were the most common complaint, and trial users were deciding against the product before they had used it.

The Solution

We started with a full performance audit: Lighthouse, WebPageTest across three geographies, and real-user monitoring data. The findings were typical of a fast-growing product — accumulated JavaScript nobody had pruned, hero images at four times their display size, a font loading strategy that blocked rendering, and no caching layer between users and the origin. The optimization work tackled the biggest wins in order: code splitting so each page only loads what it needs, lazy loading for everything below the fold, images converted to modern formats and served at the right dimensions, fonts self-hosted and preloaded, and a CDN with edge caching fronting the whole platform.

Technologies Used

Code splitting and performance budgets wired into the build pipeline — a pull request that exceeds the page-weight limit is rejected before it ships — plus modern image formats, self-hosted fonts, and a CDN with edge caching.

Business Impact

Load time dropped from 6.2 seconds to 1.1, every Core Web Vital now passes on mobile, and p95 response time on the dashboard halved. Support tickets about slowness stopped almost entirely, and conversion from trial to paid improved 12 percent in the two months after launch. The engineering team also got something back: the hours they used to spend investigating speed complaints. Six months later we re-audited with fresh real-user data, and the metrics had held — which is the part of performance work most teams skip. The budgets we put in the pipeline did their job, and the dashboard team now ships features without debating whether they will slow the app down. It is the difference between a one-off fix and a permanent capability.