As we run azure application insights for diagonising any performance issue for website we get the Get DefaultPage/Index as one of the slow running of all the operation we have. Is it mandatory to have it for website to function?
No, absolutely not. DefaultPageController is not even a builtin controller, it could be the route that is misleading. You can switch to Browser to see which URL is actually slow, and understand why (it's slow)
As we run azure application insights for diagonising any performance issue for website we get the Get DefaultPage/Index as one of the slow running of all the operation we have. Is it mandatory to have it for website to function?