Explore the performance challenges faced by Slack's desktop application in this 27-minute conference talk from LeadDev New York 2024. Dive into the complexities of supporting numerous feature interactions and processing constant user and server input while maintaining a seamless user experience. Learn from Jenna Zeigen, a founding member of Slack's frontend performance team, as she uncovers the performance bottlenecks encountered during the application's growth and evolution. Examine how initial architectural decisions have led to current issues and discover the diverse technical and cultural approaches employed to prevent and mitigate inefficiencies causing excessive resource consumption. Gain insights into managing complex software systems and optimizing performance in large-scale applications.