Comparing Bitcoin tps to Visa is a misunderstanding of final settlement Bitcoin performs. Bitcoin transactions are final and settled within 10 minutes to 1 hour. Visa settles 0 transactions. Final settlement occurs between banks which takes 2 business days or up to a few months.
Santander bullish on the lightning network.
Bitcoin is only able to execute 5–7 transactions per second, whereas VISA executes more than 20,000 in the same time frame. The Lightning Network however is a solution to this problem
Payments on this network do not require block confirmations and are therefore instantaneous. It also allows payments for small amounts, with much lower fees compared to those using blockchain validation. Another major advantage of this network is its scalability – as it can support millions of transactions per second. Ultimately, this network eliminates the risk of delegating custody to third parties.
https://www.santander.com/en/stories/lightning-network-blockchain
Discussion
Yep that shows a misunderstanding from them. With lightning each payment is also a form of settlement contrary to Visa which are form of debts. The on chain settlement is just a bedrock final settlement.