so i have a nvidia 970 on windows 10 and i'm only getting 3MH max, whereas some people can get 7 minimum and with the right drivers they can hit 18-20MH.  why am i getting only 3MH?  a google search recommended nvidia 347.52 drivers, which i tried to install, but after that it wont even work.  says i have no opencl or cuda.  so i have to reinstall newer drivers.