No, V32 contains no change to the Mk4 software on V31.

Both V31 and V32 contain 4-1/100

The slowdown in response is most likely related to the increase in data on the disc (dual layer holds more data)

To incease speed of disc access do the following:

1. Use an original BMW disc, not a copy. It is read faster by the nav, and speeds up operation of the nav

2. Use a single-layer DVD.