throttleAutoAnimation property
Whether the automatic animation (when no controller is given) schedules engine frames at the composition frame rate instead of on every vsync.
This is a global kill switch for the frame-rate throttle introduced in 3.6.0: set it to false (typically once, at app startup) to restore the previous behavior of ticking on every display frame. Widgets already on screen pick up a change the next time they are updated.
Implementation
static bool throttleAutoAnimation = true;