Case Study

Performance Tuning Legacy with Quick Wins

Transport and Logistics Service Provider

Challenge

Users were experiencing significant delays when loading key pages within a legacy application, resulting in poor user experience and increasing customer complaints. The client challenged Fabric to improve page load times by 50% in just two days, despite working within the constraints of an ageing application, tightly coupled systems, limited infrastructure access and no ability to deploy traditional performance profiling tools.

Performance Tuning Legacy with Quick Wins
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PRocess

Fabric rapidly investigated the issue using New Relic to identify the highest-impact performance bottlenecks. Rather than attempting a complete system overhaul, the team focused on delivering targeted “quick wins” with the greatest return on investment.

By optimising caching logic, reducing and consolidating inefficient database queries, and moving logging processes off the critical request path, Fabric significantly improved application performance with minimal code changes and disruption.

Performance Tuning Legacy with Quick Wins
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Results

The optimisation delivered immediate business value:

  • 50% reduction in page load times within just two days.
  • Eliminated the primary source of user complaints by dramatically improving application responsiveness.
  • Delivered measurable performance gains through targeted, low-effort improvements, avoiding the cost and risk of a major legacy system rewrite.
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