10038: Data Frame uses the Maplex Label Engine

You are using the Maplex labeling engine for computing map labels on the fly. Maplex does an excellent job placing labels on the fly but will decrease performance due to the calculations involved. For this reason, Maplex labeling is recommended only for cached map services when publishing map services. When working with a basemap layer, Maplex labeling may decrease performance of map display between pan and zoom operations.


First, check the drawing performance of your basemap layer in ArcMap or your map service in the Preview window. See Working with basemap layers or Publishing map services for more information. If you need to make changes, do the following:

More information

There are three options for generating map text:

See An overview of working with text for more information.