It has slow transactions and the fees are high, and it is the cryptocurrency frontier.
What do you think will realistically will take Bitcoins nr1 spot in the future? Bitcoin Cash maybe?

Bitcoin is the first coin in cryptocurrency and is the foundation of all coins, while the other is an alternative coin which is a coin made after bitcoin, the highest bitcoin price of all coins, many investors believe bitcoin and invest in it, bitcoin will remain the most popular coin in future.