i tried it with HT on and off.
EIther way one thread or core is constnatly at 100% leaving no headroom for extra load.
With HT off though, my FPS got even better.
But yeah, FPS isnt my problem 
So I’d rather trade in some Frames for a full flight without pauses and stutters.
And as I get those even on low settings, the only reason I can think of is the 100% usage of a singele core / thread…
But obviously I am not the only one, the announced and presented changes were not implemented for some unknown reason and I have to accepts that the Sim is still unable to take advantage of hardware capabilities…