When I select an object in my web app I have to select above and to the left of the actual object to get the info (highlighted box in picture is the valve to the right of it)
Are you using an esri basemap or one of your own? What is the spatial reference of the data?
I am using an ESRI base map.
The data is in NAD83-OHNFT
Is this the problem?
It should not be, but could likely be the issue. I use a replica to get my data which is NAD 1983 State Plane Alabama East Feet to Web Mercator and I maintain this through a nightly replica synchronization task. This way the map is very fast as there is no on the fly re-projection of my data in my web app.
Retrieving data ...