Julien Vinber's presentation introduces Swoole, a web framework designed for high performance and simplicity in deployment, featuring a coherent ecosystem. It highlights its capabilities for predictable linear code execution and basic memory management, while addressing its limitations with heavy processing and multi-threading complexity. The talk also compares Swoole with other tools like ReactPHP and Symfony Messenger, emphasizing its coroutine-based approach to enhance event handling and multithreading features.