An MXD with a large amount of layers included (usually our basemap), the load time between the Roads and Highways extension vs. no extension, is ~10 minutes vs. ~30 seconds. Has anyone else noticed an issue with large MXD's being opened with the extension?
I currently have to use another desktop to do my work not related to Roads and Highways. Turning the extension off does not change the outcome.
Currently on Windows 7 and ArcMap 10.6.1, but had the same problem in previous versions.