Well (indeed this goes to everyone that wants that 100%), the thing I recommend, in my experience, is play all the songs like 2 or 3 times to familiarize with the layout and the controls, and improve acurracy.
Other thing I use (but this very personal) is change the layout adjustments to "triangule" or "flat", I find "cone" to be very awkward to read, and use a higher scroll speed
But this is all my preferences, you can use whatever option you feel confortable with, this is more try and error
GL HF