Low rewards for 44MH .71RVN/Mh any help?

Hey guys been mining awhile now and i notice my RVN/Mh has been low and i wanna try fix that .

i have 2 cards in 2 differnt pc's rx 5600xt and rtx3060 . I get about 44MH combined on ravenminer , rejected shares on both machines is below .3% but my RVN/Mh is always around .71 – .75 Can anyone help me to get this number closer to 1 like most everyone else . My only idea is to try pps they are pplns by default.