guys,
wanna ask regarding dualshock3

i got 2 DS3
the problem i've been facing playing the game is:
whenever i use either thumb-stick to move or aim or etc
the controller always activate different button.
let say: i push left thumbstick up to move and suddenly i shoot (without pressing L1)
and right thumbstick to aim, suddenly change loadout (without pressing D-pad)
why is it happening?
i mean both controller had same issues

P.S : does lightning return worth playing.. i mean i have both limited edition FF13-1&2...and game so good to play but does FF13 lightning return worth it?
plan to buy 2nd and i know its an old game....