Hello. Please make a bug report if you believe an aircraft is not performing how it historically should: Community Bug Reporting System
There is no need to spam a forum topic for each aircraft you believe you have found an inaccuracy with. Simply, it needs to be reported. You can use any of the existing topics of discussion on the aircraft to talk about it.
In game performance of the Phantom FG.1 and FGR.2 is based on the manuals for them.