okay… the a32nx mod I can’t retry.
For low fps on ground there is a different topic ( Poor performance on the ground ) and solution for now is to lower the LOD setting, in special in big airports ( example fps compare high density vs low densisty airport on ground )
And why is then the “increasment” to 35 fps an issue ? 
… I mean I play with a VSync limit to 37.5fps ( just 75fps monitor ), so that is my “normal”.