Hi all, so the issue is very difficult to explain maybe if y'all see it y'all me have a better idea so I going to try my best to have it written well.
So I have been flying with PMDG 737NGX for FSX and all my airspeed reading where correct cruising at .79 which is roughly around 484kts... I recently installed the Aerosoft Airbus a319-21 first couple of flights have been successful but as of recently it's all messed up, when cruising with both aerosoft and pmdg + other freeware airplanes my plane would try to cruise at a slow speed so on the autopilot panel it will say .80 Mach speed but on the pfd I'm am literally slowing down and going .45 which is very odd and sometimes disconnecting the auto throttle helps no little so I am very sure it may be the Airbus but at the same could be something else.
So far I'm yet to find the issue but I am going to attempt deleting the FSX folder in %appdata%/roaming/Microsoft/fsx and see if that works .
If anyone has any other suggestions or why this is happening please leave something below this would be very great full.
Thanks in advance.
Also I'll post some pictures later to show what I mean