Guys,
Don't be overly pessimistic. Luthier, you too you are probably tired, a good sleep and you will come back with renewed enthusiasm
IMO this means simply that we must wait some more time to have the problem solved. I'm confident that Luthier's approach - solve issues one by one as opposed to the post-effect, FPS killer filter - will fix this mess. It is technically feasible - true, Luthier? - it just needs more time.
I just blame the improvisation behind all that: either someone in Russia didn't read the technical requirements attached to the Ubisoft contract, or someone in France forgot to tell them.
Good night!
6S.Insuber