it takes less than one second to go through
Like Bitcoin used to be before someone had the brilliant idea of destroy the possibility of zero-confirmation transactions on-chain with Replace-by-fee transactions
Except people wanting to do more than 15 transactions a minute
It's more like 7 transactions per second, which is still absolute crap, but that was after the original Bitcoin project was kidnapped. There aren't such limitations in the original Bitcoin (forked as Bitcoin Cash)
Or that to scale everyone would need to store a petabyte size blockchain
That is addressed in the whitepaper (SPVs and pruning)
This solution to this issue is extremely simple, but I bet it will never be implemented in Bitcoin BTC. That's one of the reasons why it forked in 1 August 2017.