I just copied some of my aircrafts from FG 2.4 Aircraft folder to the FG 2.6 Aircraft folder. For example Embraer E-Jet series. This aircraft in 2.4 was generating something like 15-20fps (i have Macbook Pro 2.26, 4GB RAM, VIDIA GeForce 9400M). In FG 2.6 the same aircraft generates something like 5fps... Ahh and btw, i realized that the sound of engines doesn't work now. (i hear tires when rolling on the rwy, but that's all i hear).
Any idea what to do?
For example DHC-6 Twotter generates a ~30fps in FG 2.6 (what is better, than in FG 2.4).
Are there any newer versions of each aircraft, optimized specifically for FG 2.6?