Hours → Seconds
report generation time
Report performance rebuild
Problem. Report generation was the single most common support request for a major Swedish payroll platform's reporting module — some reports took [X] hours to complete.
Approach. Rebuilt the data layer end to end: reworked query patterns, indexing, and how reports were generated, without changing the reports users relied on.
Result. Reports that used to take hours now complete in seconds. Support requests related to report performance: zero.