Why is Public Mint faster than most stable-coins?

The vast majority of stable-coins run on top of Proof-of-Work blockchains (mostly Ethereum or Bitcoin). Transactions on Public Mint are faster because they run on a dedicated network optimised for Fiat, The key advantages of this approach for transaction speed are:

• Immediate vs. eventual finality: PoW networks take multiple confirmations before a transaction can be probabilistically final. Public Mint only requires one.
  
  
• Substantially higher throughput: stablecoins based on general-purpose chains like Ethereum compete with countless other transactions, financial or otherwise. Throughput is limited by block time, size, and difficulty. Public Mint’s consensus protocol enables much higher throughput with no risk of splits.