This document discusses how poor website performance can negatively impact user experience and business metrics like conversions and revenue. It provides examples showing that small increases in page load times can lead to significant drops in customer satisfaction, page views, and conversions. Mobile site performance is also important, as many users expect the same experience on their phones as desktops. The document then introduces Compuware as a leader in application performance management that can help companies address these challenges through features like analyzing performance in relation to user behavior, speeding issue resolution, managing third-party services, and providing a unified view of web, mobile web, and native app performance.