The sim ran perfect on my system before the patch; now, it seems to run slightly faster....
Shadows seem to render a little better.
A couple of new serious bugs, nevertheless:
-On all planes, now at the beginning of the flight oil an radiator temps are hot and heated for running; If you don´t open the radiators, even with the engine off they increase and you can burn your plane; It is as if the game thinks that the engine is running...
-On the spitfire, the mirror cannot be seen and the reticle projects outside limits.
Despite those bugs, Thanks a lot for the progress!
Edit:
It seems that the Spit mistakes are some remainding of old graphic engine; further tests improve thinks on this....And the framerate improvement becomes more evident each new try...;D
Another edit:
The more I test the patch, the better .... all the reported graphical glitches seem to be fading the more you run the game, probably remains of the old caches being renewed. And, AA now works on my system; with the latest beta nvidia drivers but you don´t need to force anythink anymore.

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My rig:
INtel I7-2600K.
6Gb RAM DDR3.
Geforce GTX 580
windows 7 64 Bits.