Ok guys a big pat on the back for you all.....
Without selecting SSAO ( Ihad mod installed b4) FPS has increased by 50 percent than b4 inc the mod activated..
I benchmarked 3 different quick missions and the first training mission all have same result.
London is very flyable
Also my six core is now running all cores for the game
I set trees and buildings and shading to medium I will now and try these on a higher setting but overall.
A blooming good job chaps
Keep up the good work