Even if you spread Visa's transactions evenly over time, the 100 billion transactions per year [1] that they perform would be a couple orders of magnitude higher than what bitcoin can support (~3000 TPS)
I think you mean to use a total transaction number for bitcoin, rather than a per-second number, to compare to Visa.
If we use the 7 TPS number that people seem to be using (even though the real number I think is slightly lower), then we end up with 220,752,000 transactions in a year; three orders of magnitude less than Visa.
[1] https://usa.visa.com/dam/VCOM/download/corporate/media/visa-...