Things have moved very quickly since this was true. For comparison, [1] Visa claims at it's maximum to achieve 24,000 transactions per second (tps), and Mastercard 5000. The work on the Bitcoin Lightning Network is moving ahead to help achieve [2] "approximately 1 million transactions per second."
Another crypto currency in use today is Solana. That runs at around 50,000 tps, beating the higher end of today's credit processing networks.