BTC flip?

Something I have found on reddit:

"BTC is a ancient coin by crypto standards. Its around 10 years old or so. And while this is not bad really, it is in BTC because there is no innovations in BTC or change. Its competitors are vastly superior in uses, speed, and cheapness of transactions.

BTC failed its original goal! Back in 2009-2010 when people were talking about BTC it was the currency of the future. With it you could go anywhere in the world and buy goods. Outside the paper monetary system. It was supposed to be as easy as using a credit card. Today in 2018, you could go buy a 5$ beer in America or Japan with BTC, but its not the vision it was supposed to have. The transaction fee will cost you as much as 20$ and the speed of the transaction may take hours. In that form BTC failed it initial task."

Well, TBH that's true. Bitcoin suppossed to be a global quick payment currency but now you can't buy anything with it. First: time of transfers, second: when transfer will arrive worth of BTC has been changed due to coinmarket speculations.
Which currency you think will take it's place as a top one?