Same position in Scenery, LFPG (Taxi2Gate) Gate A18,and same configuration P3Dv 3 >30 fps P3dv 4 > 24 fps same problem with two simu for Beacon.
My configue µp I7 970 3.20Ghz, Mother bord Saphire Pure Black X58, Memory 12Go DDR3, Graphic cards INNO3D GTX 970 and MSI GTX 660 TI, 5 displays, The system (W7) and the two simulators are each on a separate SSD disk.