Distorted speaker

Weird one…since ive had my OP-1 ive added various patches and sampled a fair bit until recently i couldn’t save any patches and was getting the FULL message. Manually deleting all user stuff via mac (yes with trash emptied) didnt solve the problem, still couldnt save.
At the same time i noticed my OP-1 sounded even more crunchy and gnarly than i remember and the speaker was dreadfully distorted. I assumed id blown the speaker…UNTIL i did a factory reset and suddenly everything (including the speaker) sounds perfect again. WIN.
So…perhaps when the OP-1 is completely full of user added stuff the overall sound actually deteriorates…
Anyone else noticed this?