Network issues are a common culprit for mysterious performance problems in mobile applications, and more than half of users seeking app performance monitoring solutions are focused on network performance. Application performance monitoring (APM) tools provide insights into server-side and client-side performance, aiding in the identification and resolution of network-related issues. Key network factors include throughput, which indicates the number of requests processed over time, and payload size, which affects traffic speed and can be optimized by examining both request and response sizes. Additionally, trace attributes and monitoring for server-side and client-side failures help in diagnosing delays and errors by offering a holistic view of app performance. Tools like Luciq APM enhance debugging efficiency by providing features such as URL grouping, which organizes network requests to reveal data patterns, reducing the time spent searching for issues. Effective use of APM tools allows for faster identification and resolution of network performance issues, ultimately improving the user experience.