30003: Layer draws at all scale ranges
A feature layer in your map does not use scale-dependent drawing, which may result in poor performance. Some feature layers with a large number of features should only be drawn at appropriate map scales. Limiting the display of features to specific large map scales performs better because fewer features are drawn at smaller extents. By setting a scale dependency, detailed features do not draw in the map until you zoom to smaller areas.
Solutions
Do one of the following:
Set scale-dependent drawing for your map layers. See Display layers at certain scales for more information.
Design a group layer to display varying amounts of information at each map scale.
Additional information
It is a best practice to set scale-dependent label drawing for map layers to mitigate performance degradation. For example, as you zoom out on your map, it may be difficult to see more detailed information. Or, as you zoom in, information may be too coarse.
In these cases, applying scale dependency to map layers can result in better drawing performance as well as presentation clarity, which is achieved by drawing only what is appropriate at each map scale and applying effective symbols and labels for each scale.
For a general overview and design ideas about the use of multiple scales in online mapping applications, see Author a multiscale map.