Airports with highest performance problem

What 3 airports impact performance the most?

Well, it depends on your computer. I can’t fly near ANY mayor city. Premium airports are a no go for me. KLAX for example, impossible to get into that airport. I mostly fly far away from big cities sadly. And only with steam gauge airplanes since glass cockpits kill my performance. It all depends on your computer.

Well, I’m not so sure. Some airports seem to be worse than others for no apparent reason. Just tried KLAX from both directions in the A320 and got between 30 and 40 fps. Earlier today EDDF gave me 12(!) FPS on short final.