Sorry but I've always found this to be dead easy. Better sounds really do automatically make things sound better. Getting the balance and settings right is also a piece of cake.

I know a performance can be played to get the most from the sound it was written with, but your then talking about the limitations of the sound and keyboard used there.

The newer keyboard your loading the data into could easily have a sound far superior that will make even more use of the performance as it may support more layers.

Which is often the case these days ad manufactures are including far more detailed sounds.

Regards
James