Non-scrolling updates (round-robin)

[BlueMax]

Instead of scrolling/moving the whole graph like a piano-roll just keep it static and update it line by line. Once at the end start at the beginning again overwriting the existing graphic buffer. This might be much more comfortable for the eyes (less motion sickness).

[unfa]

I guess a single line of white pixels denoting the currently refreshes area would also be useful.