title: What are the potential causes for slow Content Download Time from ASP.NET Core API hosted in IIS?
body: <p><a href="https://i.stack.imgur.com/rlctW.png" rel="noreferrer"><img src="https://i.stack.imgur.com/rlctW.png" alt="Content Download at 1.8 mins"></a></p>
  
  <p>The attached image shows a download of 1.5mb of JSON from a ASP.NET Core(1.0.0) Web API controller hosted under IIS. I am struggling to debug where all this time is going. Does anyone have suggestions of the potential cause of this?</p>
  
  <p>On localhost under kestrel it takes 4.5 seconds.
  On localhost under IIS it takes 13 seconds.</p>
  
  <p>Potentially looking more like an infrastructure constraint?</p>