No really, it's not the performance. When flying with FSX, including the online software, Plan-G and REX everything is running smoothly, with allmost the sliders to the right. No problem
If FSX can deal with all the possibilities, why can't Prepar3D ?
By the way, my CPU i7-980 is overclocked from 3,33 to 4,2 and my framerate slider is often locked on 22 (FTX-Orbx proposal) Only when flying from/to Mega airports the framerate slider is set to 50 or unlimited. And the cfg file (FSX and P3D) are carefully edited
Please excuse me for my poor English. (I'am from the othersite of the North Sea)