🟪 #2 Advantages of Arbitrum Fast Transaction Processing and Low Fees With the Arbitrum Nitro upgrade (the old Arbitrum One called Arbitrum Classic), the optimistic rollup technology on this platform has advantages in transaction processing speed, lower fees, ease of operation, and more compatibility with EVM. As mentioned earlier, Arbitrum Nitro can process transactions 7-10 times faster than its predecessor (Arbitrum Classic).