You can increase the map detail by doing the following:

Zoom in and out of the map in order to see more detail (on the top toolbar go to View > Zoom in)

Ensure that your Map detail is set to Highest (on the top toolbar go to View > Map detail > Highest).

Underneath View it must say HIDE GPS MAP DETAIL as below. If it says SHOW GPS MAP DETAIL, click on SHOW GPS MAP DETAIL to display detail.

Go to EDIT > PREFERENCES > DISPLAY and ensure that your settings are set up as below: