ok i changed the cfg files from 1 core to multi core. Disable xfire in additon to setting priority to high and the settings i mentioned earlier in CCC in additional to a pretty high OC and this time round i managed to play thru almost 2 stages before i decided to call it a day. Unfortunately the game hung when i saved and wanted to go to main menu. I understand there's quite a long animation of bombs and explosions before you can reach the main menu. For me this is a very big significant improvment over my earlier gameplay since i died countless times while playing thru those 2 stages so i probably played maybe like 2 hrs of gaming without any MS or game hanging during gameplay perhaps a slight slow down during intense gameplay. Overall i would say it kind of resolves the problems for me.