so I don't know exactly when this started but for some reason my gtx 1070 never goes over 1506 MHz well playing League of legends, I have a modest overclock +173 core clock (MHz) with a memory clock of +600. when I do the valley benchmark my graphics card seems to be running normally along as well as when I play tomb raider, but in LOL I only go up too 1506 MHz which for a game like LOL shouldn't really be a problem but I'm planning on getting a 1440p 144hz monitor and when I get that I want to play at my max frame rate, i used to get an avg of about 290 fps and now I am occasionally dropping into the 130 range, (a friend who has a very similer setup has not had this problem.)