please anyone answer me.
I have no idea how your SD card itself could be causing lag - I'm not a 3DS user, are you sure your card is compatible? Do you have an original DS you could use?
i dont have any orginal ds thats bad. Because i have formatted it like a billions of time both into fat 16 and fat 32. But its the only sd card that play this game without save freezing.
And iam using r4i-sdhc 3ds So it should be combatible becuase with my 8gb its work like a charm. But then i cant save. D,: