In this presentation, we will delve into the innovative approach of shift-left performance testing, a strategy that aims to identify and mitigate performance bottlenecks earlier in the development cycle. We'll explore the utilization of Synthetic Test Data and Mock Services to create realistic testing scenarios, enabling teams to uncover performance issues before they become critical. Additionally, we'll discuss the importance of scalability testing during the early stages of development, allowing for seamless expansion as user demands increase. Join us as we unravel the benefits, methodologies, and best practices of shift-left performance testing, ultimately leading to enhanced software performance, better user experiences, and accelerated development timelines.