Hi Ive overclocked my gpu to get 4600mhz on the memory and ranging around 2088 - 2126 on the clock and when I'm playing Grand Theft Auto V on NVidia optimised settings I'm only getting around 30 - 50 fps ive also checked my graphics usage when driving is mostly in the 60s but cpu usage isn't maxed out that's in the 60s-70s so what is wrong please can someone provide me with some tips