Long response times for azure deploys

We have deployed our MVC projetc to Azure. The project is built with best pratices for db and backend developments. But we are not pleased with the response times for the project on azure deployment. While it is working as expected on local platform it works much slower on Azure. It's not like a VPS server. What are the best practises to have the best performence on azure deployments. For example we have enabled "Always On" feature on Azure. But it is still same. Sometimes page load times, ajax request response times are very long 

Regards