LSDJ on EZ flash IV (goomba)

Hi all I've been reading a lot of forum threads and watching videos, but I haven't found any straight answer
So I'll ask here, hoping you guys can solve this once and for all.
Is there a way to run LSDJ on a GBA EZ flash IV cart? I've been trying with lsdj goomba edit through goomba, but the kits sound shit. Above that, when choosing a note (A hold + dpad), going above C4 will stop hearing notes (only one every 6/7 can be heard). Also, when playing the song, it needs to repeat at least once the phrase before I can hear the notes.
Is there anything I can do? Any of you had these problems or can run LSDJ smooth?