High Frequency (HF) RFID technology enhances operations in logistics, retail, and access control, necessitating efficient tag identification. This paper addresses the challenge of tag collisions in HF RFID systems, where existing protocols such as Time Division Multiple Access (TDMA) are not fully optimized for HF requirements. We introduce a novel hybrid-mode protocol utilizing the ISO 15693 standard, which supports either 2 or 16 branches per node in its tree-based anti-collision mechanism. By dynamically switching configurations based on real-time tag density, our protocol significantly improves identification efficiency. We validate our approach through theoretical analysis and extensive simulations, along with real-world experiments, demonstrating marked improvements in operational speed and efficiency. This study is the first to tailor a time-efficient tag identification protocol for commercial HF RFID systems, offering substantial benefits in operational efficiency and user experience across various industries.