Update: I gave GTA V a shot with just LSPDFR installed and I was getting the same results. I read that turning of VSync would actually fix it because if you couldn't reach 60FPS then it would actually drop, it did infact help but it will still drop down to the 30s-40s.
I uninstalled, cleared everything out including my Profile, and I decided to set all my Graphics/Advanced Graphics off or to Normal and I STILL was getting upper 30s-60. I then proceeded to defrag my C Drive, check my Computer Health, check to see if I had memory issues but discovered no issues what so ever but am still stricken with low FPS. At this point I'm honestly dumbfounded. Does anyone know of any other procedures/tests I could do to see what the problem is?