Subsecond refers to a time frame that is less than one second. It is often used in contexts where speed and responsiveness are critical, such as in computing, telecommunications, and various scientific measurements. Achieving subsecond performance can significantly enhance user experience and system efficiency. In technology, subsecond response times are essential for applications like online gaming, financial trading, and real-time data processing. Systems designed to operate within this time frame can handle tasks quickly, ensuring that users receive immediate feedback. This capability is crucial for maintaining competitive advantages in industries that rely on rapid decision-making and actions.