Actually monoliths maybe faster than microservices. Consider monolith -> cpu l1 cache -> end user Microservice -> account servive -> foo service -> l1 cache -

Actually monoliths maybe faster than microservices. Consider monolith -> cpu l1 cache -> end user Microservice -> account servive -> foo service -> l1 cache -> end user Ie monolith goes directly to cou cache Microservice goes to network calls which are mich slower than cpu cache. Also with microservices you will need distributed application performance metric for call tracing. Distributed central logging. Container orchestration platform to run all the services.