Hi @bfalandays, apologies for the delay in getting back to you whilst I investigated further.
It may be that we provide an interface directly to the eye tracking data provider (in this case HTC), through the TobiiXR.Internal.Provider property.
It might be possible to use that to update eye tracking data faster than the application framerate by using:
var provider = TobiiXR.Internal.Provider as HTCProvider;
provider?.Tick();