[flyingblind]

A very noticable improvement. System specs are:

Asus M4N98TD EVO NF 980a SLI AM3 Motherboard
Phenome II 965 Quad Core
Asus Nvidia GeForce GTX 560 Ti
4gb DDR3
Windos 7 Ultimate

I have been trying it out with everything set to the maximum except for building details which is set to low.
Grass, roads and forest on.
AA set to 8x and process affinity mask=14.
Anti Epilepsy and SSAO unchecked.

Over sea fps ave 50
Tree top level including over towns like Dover fps ave 27 - 30.
Mixing in dogfights and against bombers the sim is always very playable with fps between high 20s up to 85.
Almost no stuttering.

CPU usage gone from 20% up to 50% or more. Usage was around 40% on core 0 and 30% on other three and is now 90% on core 0, 50% on core 1 and 20% on 2 and 3.

Memory usage has gone from 2.5Gb or less to 3.1Gb.

The landscape looks just excellent.

London sightseeing struggles a bit and really needs the settings turning down which is fair enough as my system specs are not top notch by any means.

Bomber intercept over London struggles even more with big freezes especially at the mission start when CPU usage drops to zero for several seconds.

So thanks Luthier, it's definately getting there.