I'm not too sure about that, the article does not mention exactly how fast the confirmation times are.
Frankly, the article reads more like an advertisement, since there's almost no editorial input.

The only thing we're getting are claims made by people who are involved with the project itself.

Steem and EOS both have confirmation times of just a couple of seconds.

Source: https://www.abitgreedy.com/transaction-speed/

How does that compare to Waves?