How does DI operate in Serverless environments (e.g., AWS Lambda)?

In Serverless, applications spin up dynamically (Cold Starts). Heavy DI container initialization drastically increases cold start latency.

Because traditional DI frameworks scan assemblies and use reflection on startup, they slow down serverless functions. Best practices involve using Pure DI, compile-time DI, or lazy-loading the container statically outside the function handler so warm invocations reuse the graph.