The fastest blockchain?

Question

Cryptocurrency

Hello everyone, can someone tell me in which blockchain the fastest transactions take place.
It is also interesting which blockchain system takes the least transaction fees.
And which blockchain is the most developed in the development world, who has the simplest and most understandable API, or something like that.

Sorry if I put it wrong, I'm not very oriented in these matters, but I want to study everything carefully.

Answer 1

In the past, Ripple has boasted about the speed of its blockchain, even articles like " How Ripple (XRP) Outdid the Transaction Speed ​​of VISA " have been published.
How true this year is, I don't know.
The Lightning Network also has very fast transactions.