In this AWS re:Invent 2023 session, Efi, a senior cloud architect at Cloudex and AWS Serverless Hero, shares strategies for improving AWS Lambda performance using Rust. He presents three approaches: Rust bindings for existing Python Lambdas, rewriting specific Lambdas in Rust, and creating Lambda extensions. Efi demonstrates how these methods can significantly enhance performance and reduce costs, showing impressive benchmarks for cold and warm starts. He also provides practical advice for learning Rust and integrating it into serverless applications, emphasizing the benefits of the AWS SDK for Rust. The presentation offers valuable insights for developers looking to optimize their serverless architectures without completely rewriting existing code.