Poor Slow Performance with Experience Builder

[TD1]

Created an Experience Builder app based on the same map/data that a WAB app was using. WAB is very quick panning/zooming but the Experience Builder app is painfully slow. 

We all pay good money for these tools and this is unacceptable.

This needs to be resolved ASAP as users don't want to use the app as its slower on the supposed "new and improved" Experience Builder

[TD1]

@Jianxia still slow at initial load. After layers load a little bit better when panning/zooming but still not great. Still not at performance parity with WAB. Still needs improvements.

Not considered resolved.