Hi Pavel,
After discussion with the development team, it seems the rationale for sleeping early is to reduce input latency. I am still discussing the issue of time feedback thottling hysteresis you have observed. I’ll reach out once there’s an update. It’s worth noting that for all intents and purposes, the game thread is running at a reliable fixed framerate, however, it is not aligned along the FEngineLoop::Tick frame boundary but from end of throttling to the next frame’s end of throttling. So it may just be a question of adjusting profiling scopes.
Best regards.