The ecosystem Polkadot team says that Polkadot has introduced asynchronous support for the first time. This enhancement promises to significantly improve the scalability, cost, speed, and flexibility of the network, and accelerate the growth of decentralized applications "." Asynchronous backup reduces block time by half (from 12 to 6 seconds), enables parallel transaction verification block production, and increases the throughput of Polkadot's parachain consensus protocol by a factor of 10. "