Digital Lending Platform Achieved 40% Faster Performance with React UI

A financial technology client managing a digital loan management system needed to improve application performance and user experience. However, the legacy frontend setup was slowing user operations, and critical third-party integrations lacked clarity, affecting service delivery.

They approached Muoro to re-engineer their UI and streamline integrations across systems, without halting ongoing operations.

The platform needed to:

• Improve page load times and UI responsiveness

• Replace the unstable UI library with a scalable alternative

• Eliminate redundant code for cleaner, faster execution

• Clarify and implement necessary external integrations

• Ensure future scalability with modular, production-ready architecture

The Muoro team was brought in to address two major issues:

• The legacy custom UI library wasn’t production-ready

• Redundant CSS and bloated bundle sizes were slowing down the app

• No consistent layout components or server-side rendering optimization

• Incomplete documentation made integration scope unclear

• Lack of a standardized integration approach was delaying development

• The client needed a strategy to handle integrations cleanly across environments

After considering all the challenges, here's how we come up with solutions.

We started by overhauling the existing UI setup.

1. Bottleneck Analysis: Identified issues with the custom UI library causing lag

2. UI Library Revamp: Rebuilt it using React, MUI, and Next.js to ensure a production-grade architecture

3. Modular CSS: Implemented modular and scoped styling to reduce bundle size and simplify maintenance

4. Reusable Layouts: Created standardized layout components for faster development cycles

5. Server-Side Rendering (SSR): Shifted rendering logic to the server to reduce time-to-interactive and improve load speed

To ensure smooth external connectivity, we:

1. Held Deep-Dive Requirement Sessions: Aligned with client stakeholders to fully understand integration use cases

2. Documentation Review: Analyzed available docs to extract specifications and remove ambiguity

3. Defined Integration Flow: Proposed a modular integration strategy using TanStack Query and React Hook Form for reliable data flow

4. Scalable Execution: Built connectors that cleanly interface with third-party APIs without introducing performance issues

We built a modern, high-performance UI backed by a modular integration layer.

• Next.js – App framework with SSR for fast load times

• React + TypeScript – Modular UI components and type safety

• MUI – Pre-built, scalable UI components

• Modular CSS – Clean and reusable style structure

• TanStack Query – Smart data-fetching and caching

• React Hook Form – Streamlined form management

The re-architecture delivered immediate, measurable results:

Optimized SSR and modular CSS drastically reduced bundle size and load latency.

The new layout and UI components made the platform more responsive and easier to navigate.

New integrations were implemented with no bottlenecks and are now fully aligned with business processes.

The client can now scale features faster with a modular, stable UI system.

The client now runs a faster, cleaner loan management platform with:

• A responsive, scalable frontend

• Clear and reliable integration paths

• Higher developer productivity

• Better end-user satisfaction

Muoro delivers backend and frontend teams that specialize in turning slow apps into fast, scalable platforms.

Let’s work together.