Oke I'm done. Thanks to smtalk we could manage to fix some misunderstandings on my side.
The fading effect which I called fading and white screens, was in fact the "route transitions". Since I'm not native English and I know the word fading for this kind of effect, and transitions contained the word "routing" I was mistakenly thinking this was something else.
On disabling the ruote transition, the fading overflow when changing options is gone and Evo looks as fast as Enhanced to me, in effect maybe faster but with my eyes I don't see ms speeds.
Second, the overview option is also fixed for me. It's not quite enhanced but I could get use to that.
The only thing I missed was the Navigation on top of the screen.
I had to use the "display as list" to get a kindlike effect like Enhanced, with expanded options. The only getting used to is that they are on top now instead of in the middle of the screen. However, Evo has some other advantages.
However, for my admin (I will show him the options now found too), it would still be nice if new options would be integrated in the Enhanced skin too or an ETA for this could be given.