Slow Loading of Web AppBuilder App

12-02-2021 08:25 AM
New Contributor III

A group within my organization is developing an app using Web AppBuilder.  I've noticed that the map appears almost immediately, but then it takes a long time for the header/navigation elements to render.  They are using the Tab theme, but I noticed the same behavior when testing different themes.  I have a video below which shows what I'm talking about.

When I looked at network tab on my browser's developer tools, it appears that requests  to all the various layers in the map must be completed before the header/navigation elements render.  The app in question does have many layers, and changing that is not an option.

Does anyone have any insights as to whether I am experiencing the expected behavior, or if something is amiss? 

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