This is part of the FBW A32NX design, the Headwind A330 is based off of the 0.8.1 FBW stable release. FBW has the sim rate limited to 2X to prevent flight instabilities with auto pilot on.
However, a little while back, one of the developers posted a hidden config element you could add to the aircraft config file to bypass the sim rate limit.
- I can’t find it, but it’s buried somewhere on the forum in another thread. Maybe someone here has it bookmarked and will chime in.
- I don’t know if that hidden config element is still supported or not.