You can integrate Laravel with ElastiCache on AWS for faster data retrieval, reducing server latency by using an in-memory key-value pair. ElastiCache provides a fully managed data store, allowing AWS to handle maintenance and scaling, making it easier for developers to manage their applications. Laravel Vapor is a serverless deployment platform that simplifies the deployment process, providing a clean UI and CLI to manage resources. To set up ElastiCache in a Laravel application using Laravel Vapor, you need to create a new project, add Vapor, initialize it, and configure ElastiCache, which can be done by creating a Redis cache and including it in the vapor.yml file. Deploying the application with Vapor is straightforward, running the `vapor deploy` command with the desired environment name.