Hello my friends. I got a best perfomance and frames for FSlabs A320 and 737PMDG with this settings on P3D V4.1:
My PC:
i7 4790k - GTX 1070 - 16GB Ram
I hope to help you too!
Below is a step-by-step guide on how I got the setup I have:
Firstly, download nVidea Profile Inspector - http://www.guru3d.com/files-details/nvidia-profile-inspector-download.html