One of the biggest drawbacks related to Django and Django REST Framework is that each HTTP request is blocking. Thus, whenever the Django server receives an HTTP request, it doesn't start working on any other HTTP requests in the incoming queue until the server sends the response for the first HTTP request is received.
However, one of the great advantages of RESTful Web Services is that they are stateless; that is, they shouldn't keep a client state on any server. Our API is a good example of a stateless RESTful Web Service. Thus, we can make the API run on as many servers as necessary to achieve our scalability goals. Obviously, we must take into account that we can easily transform the database server in our scalability bottleneck.