Hasura is an open-source GraphQL engine that helps developers build modern APIs and apps faster, supporting multiple databases and providing built-in authorization and caching. To improve query performance, it can be integrated with Cube, an API-first headless business intelligence platform that connects to data sources and enables fast, responsive, cost-effective, and consistent access to data across applications. By using Hasura's remote schema feature, developers can unify all GraphQL endpoints in Hasura and get the added benefit of performant analytical queries. The integration allows for centralized data modeling, query acceleration with pre-aggregations, and faster response times, making it an ideal solution for building data-intensive apps.