Noobie Setup Help???

[wedgewalker]

I have a 51" Central Marine Victory Cat, I am running a TP 5680 800Kv 4Y, Swordfish 300x+, Giant Power Kitty sticks (6000Mah 6s 70c-140c) x2 for 12s. 1/4 flex drive twin water pickup rudder. I have been using Andy Brown Octura X455, X457 and X460 props but seem to feel that temps are too high for that setup, I also live in Texas and surface water temps are high unless I run in the mornings. I have a Kingkong (HiFei) wifi dongle installed for watching temps, amps, and volts on esc and temps are 54c to 59c on a 2 second run. Wide open straight runs turn and repeat. I am not looking for insane speed just efficient longer fun runs. My question is, should I try X445, X447 and X450 instead of the sizes I have been running? Anyone have some input on this?