Same problem here. I think the performance metrics are simply not coded on the Unity plugin. Indeed, in the “EmoEngine.cs” file form the Community SDK, it can be found:
public delegate void PerformanceMetricEmoStateUpdatedEventHandler(object sender, EmoStateUpdatedEventArgs e);
and
public event PerformanceMetricEmoStateUpdatedEventHandler PerformanceMetricEmoStateUpdated;
However, such delegate and event are not present in the same file for the Unity Plugin
Can anybody solve it?