It is somewhat complex to compare A320 FFSs across the various Airbus data standards, let alone manufacturers (or even operators) especially with the latest standard(s) using very different approaches with the NFL flight data and binaries being supplied by GO5 to the TDMs now.
Additionally, Airbus aren't helping matters with their data in Stnd 1.9 which was CEO with sharklets having all aero effects from the sharklets zeroed out in the data.!!
Unless you are comparing simulators with identical simulated standards, any comparison is IMO very difficult.