I have a few songs i'd like to map but all of them has low bpm, like 108, 120, 130. Those are quite low and not fun to play, will i be able to map songs properly if i'll increase bpm, like, in double, making 108 to 216, 120 to 240 etc, or there are any other solution? The main problem is that when i map song with 108 BPM, the hardest difficulty can be played only with 2 fingers while its supposed to be a bit harder.