Users appreciate pages being usable and interactive soon after they're visually ready. User Interface interactions impact the performance of a web page, and the latency of such can lead to “Rage Clicking”, and the loss of interest. Time to Interactive (TTI) can have a high correlation with overall conversion rate. Where is the balance, and what can we do to increase the usability without impacting web performance? Louise will explore the metrics and measuring tools around web performance and how optimizing user-centric metrics can improve your overall User Experience.