So, I am not sure if this is a mod problem, But I have FAR, B9, tweakscale, deadly reentry, and procedural wing installed. There are others, but those are the only mods I can think would cause the problem. As the name suggests, whenever I right click an aero surface (wing or control surface, but not speed brake) from stock, or procedural, the game slows to about 2 FPS. This is even just trying to pan/zoom/rotate without trying to change any of the values. When I left click any other part (including other B9 parts, engines, intakes, cockpits, etc.), or don't have any menu selected, the game works perfectly fine and I get 30 FPS+. I can only think that FAR or something else is trying to dynamically update lift/drag, or at least that is my best guess. Have any of you ran into this issue?