It may be worth looking into HTTP 2. While it may or may not be supported widely enough for production yet, it provides for things like "server push", which sho

It may be worth looking into HTTP 2. While it may or may not be supported widely enough for production yet, it provides for things like "server push", which should allow you to minimize network round trips while keeping components separately cacheable (and therefore not requiring you to do gymnastics with your API to keep your cache granularity down), which should be helpful both with and without GraphQL. I would recommend, either way, though, thinking about organizing your objects around how quickly they spoil for their given cache key (usually the URL) across multiple clients, since that ultimately determines where you can hit cache and where you need to make a new request, regardless of what libraries you're using.