What are the frame rates that set your eyes off? And your system specs and graphics settings?
Like I said, I haven’t flown the FBW mod enough to have a personal opinion, but are other people reporting the same issue you are having?
In general, I don’t really have graphical issues except for some strange reasons in the Seattle area. I actually get worse performance there than I do flying in between buildings in Manhattan, which makes no sense to me, but is nonetheless happening. I do have a pretty beefy system, though, a modestly OCed 10600K combined with a stoutly OCed 2070 Super
These statements, taken together, don’t make any sense. Either you want as realistic Point-A to Point-B travel, which means something study level (or close to it anyway, at least as I define “study level”, and people do have different definitions of that), or you’re looking for something more casual, which is not as realistic as possible.
Regardless, either way you need decent performance, maybe your answers to my questions above will help me give you some advice. Or maybe not, I’m a high-end nerd, but I don’t know everything about everything. Of course, nobody does.