Microservices are those components of an app architecture that create a suite of systems. Many microservices combine as a suite to create a system that interacts through UIs (User Interfaces) with the users. Therefore, your application performance largely depends on microservices.
Springboot is an open-source framework based on the Java platform to create excellent microservices. It can help you build spring applications that can be used in the applications and are production-ready.