i think this game is way too much for the 3ds, even for the new ones, rayman origins was already very bad, but i dont think it was for the 3ds performance

see, the 3DS, especially the old on hs very limited hardware, its CPU isn't very fast only somewhere in to 200 MHz and it has very little RAM this is 128 MB, only 64 MB usable for games and for an ambious game like rayman legends, it is practially impossible without downgrades