Dependency injection is a useful pattern for writing modular code, but by design it requires an object's dependencies to created first, which adversely impacts your app's startup time. One solution is to use asynchronous dependency injection to create dependencies on background threads, in parallel. There are two main strategies for accomplishing this goal: Dagger Producers and RxJava with Dagger. This talk will focus on migrating slow dependencies to Dagger Producers to improve app performance.