The Alpenglow prototype has introduced a significant improvement in block production efficiency by implementing a rapid leader switch mechanism. Previously, leaders had to wait for the confirmation of a parent block before producing the first block. The new system allows leaders to begin production based on the anticipated parent block, reducing the delay by approximately 120 milliseconds. This advancement has resulted in a 7.5% increase in IBRL (Increase Bandwidth, Reduce Latency), optimizing the overall performance of the blockchain network.