When Using this Map CN2013.10 Southern Africa together with The Tracks for Africa GPI on a nuvi 1300
I got very slow screen redraw after a JV or an automatic Zoom OUT while navigating and simulating.
Solution delete the Tracks for Africa GPI file from the nuvi now all normal again.
The File is not corrupt or anything as the same file works fine on more powerfull nuvis.
Took me a long time to fix this problem so I decided to share here.