i have 2 rx 570 4gb red devils

when mining ethash i get around 27m\s on both of them

1200-1950

but mining cryptonight

1 of then ash at 750h\s and the other one 450\h\s

i tried to play a little bit the cc and mc but 450 is the best i could get

anyone could tell me what's wrong ??

and can i pull more than this from this card Huh

my power consumption around 125w which's consider as high

my PSU: cx 750 w corsair

thank you in advance