As you can see its been a year were bitcoin remain on top among all crypto currency in this business industry.
Since 2009 we saw how it grew up its price value in the market and how the different nation adapted it and regulated it
to their own country, and how biggest companies adapted it also to their own business because of the blockchain technology.
Meaning, because of this matter there is a high chance that bitcoin has a big future.

There are millions of users that has been using bitcoin that has never even complain or bother about whatever point the OP complained about, that is why it is an alternative to fiat, if they cannot use bitcoin as at the time they need to make the transaction, they could simply just use fiat if they feel it is faster.

The inventor of cryptocurrency will always know more than all these other coins that claim they are faster than bitcoin, If they are indeed faster than bitcoin, I wonder why they have not gotten that popularity already, I don’t see any of their system that has been created that has anything spectacular or different from the system of bitcoin. Bitcoin is still the major cryptocurrency of the world that will always remain a working product.