When millions of fans tune in for a global event like the World Cup, mobile apps can experience massive spikes in traffic within seconds. To ensure seamless performance during these high-demand moments, organizations must prioritize mobile app performance testing, including load, stress, spike, and scalability testing. These testing practices help identify bottlenecks, measure app behavior under extreme conditions, and ensure infrastructure can handle sudden surges in users without crashes or slowdowns. By testing on real devices and simulating real-world usage scenarios, teams can deliver reliable, high-performing mobile experiences even during peak traffic events.