Thanks again Zion. I have concluded that my half decent spec PC from 2008 is just not gonna cut it with today's media demands.
I was kidding myself that upgrading my Gfx card would resolve the issues. I've played COD black Ops 2 and it ran at 40-55fps on max settings so is way better than my old card.
I suppose its like sticking a turbo on a crappy 1.0ltre car, the performance bottle neck is still the engine, or in this case the mobo. I should have checked before but it's not even PCIE 2.0!
My solution: as mentioned I have the R9 270X 4Gb gfx card so I've added to that with a ASUS Z87M-Plus mobo, 8gb 1866 DDR3 corsair vengeance RAM and a i5 4670k 3.4 to run it all.
That should hold me out for a few years at least. Just got to tell the missus that, having been told I can't sped £500 on an xBox One I have spent that, and some, on a new PC instead!
I've uninstalled all my nVidia program's etc now so that should be it right?
If so I guess we're done here now. Thx.
Intel Quad 2.4GHz Q6600, 8Gb RAM, ASUS P5K-VM, AMD Sapphire R9 270X 4Gb, Windows 8.1 pro.