What you'll learn

Performance problems in Flask applications are rarely caused by Flask itself—they usually stem from blocking work, inefficient request handling, repeated computation, or poorly understood data access patterns. In this course, Flask: Application Performance Optimization, you’ll learn how to recognize and reason about performance issues in Flask applications. First, you’ll explore how Flask handles requests and how application structure affects performance. Next, you’ll examine common optimization techniques such as caching and efficient database access, including their benefits and tradeoffs. Finally, you’ll learn how middleware and logging support observing and diagnosing performance problems. By the end of this course, you’ll have the performance awareness and decision-making skills needed to prepare for hands-on optimization work in guided labs and real-world Flask applications—without over-engineering or premature optimization.