BTC is too slow, it will never be fast enough or have the transaction capacity to fullfill a Global role.
Even the Lightening network fix, that is supposed to allow it to handle more will fail if BTC can't handle the volume, which it can't.
Coins like ZEIT with a 30 second block speed are Taylor made for Global use.BTC with 10 minute block speed is pathetic.
Do you know if BTC was not controlled by China, then the rest of the community could go to a 5 Minute Block speed , which would double their transactions capacity or even a 2 minute block speed which would increase their transactions capacity by
5X .
But China won't allow that so they don't lose their Dominance. Centralized Control of BTC really sucks, doesn't it. 
i do not understand how a block speed of 5 or 2 minuets would change anything about the chinese dominance. hey you could open the worlds biggest mine and take the control from the chines. also you could make your rules then.
saying there is a centralized control of bitcoin is like calling a democracy a dictatorship, because a party you dislike was elected.
That statement shows me , you don't understand how BTC works.
So I shall do my best to enlighten you.
Changing the Block Speed to 5 minutes , means that instead of 1 block created in 10 minutes, we now have 2 blocks created in 10 Minutes.
2 Blocks can contain
Twice the amount of Transactions as 1 Block.
(Feels like I am teaching a kindergarden class. ) 
China internet infrastructure is substandard compared to Europe & US & Japan & South Korea.
Faster Block Speeds and Larger Block Sizes would strain their infrastructure and give these other countries an edge in mining BTC.
Ergo to maintain their higher than 51% mining control, they have to block these updates which would quickly fix BTC transactions issues.
While they have over 51% control of BTC , it is Centralized to China, meaning there will be no changes or updates unless they approve it.
You should study a 51% attack , as without understanding that , you will be clueless to the fact BTC has been centralized for over a year now.
FYI:
It is absolutely amazing ,
how many people are clueless to who controls BTC.
It was supposed to be decentralized by no one person, or one company , or one Government ever having over 51% mining.
China has had over 51% mining control over BTC for more than a year now.
BTC control has Centralized to
China.
Reason being the 51% security attack warned about by Satoshi himself.Reference: In his Bitcoin paper, Satoshi identified several issues, with the 51% attack being the greatest.
http://www.btcpedia.com/bitcoin-51-attack/So what is the 51% attack? To understand that you have to understand how Bitcoin works. Essentially Bitcoin is a collection of nodes performing “virtual work”, the more work you do the higher your rating on the network. So what happens when malicious users get together and manage to do more “virtual work” than the “good people” ? Well that is the 51% attack, and it basically means you can wake up tomorrow with zero Bitcoins in your wallet. It means any business that accepts Bitcoins can get robbed and have all their goods taken with fake Bitcoins. It also means if they wanted, governments, large corporations or hackers can “shut down the network” by refusing to accept any new transactions. Complete network shutdown. Can’t do anything with your Bitcoins, neither can anyone else.
FYI2:
China is the World's Leading Manufacturer of ASICS, they are always going to keep the fastest and most efficient ASICS for their pools.
Waste of Fiat trying to beat them on BTC, they have already won, BTC Future is theirs to control.
Smartest move is to just use another coin without the limitations of BTC.
That is why I use
ZEIT it is faster, higher transactions capacity, Truly Decentralized
(Everyone that owes it can mine it) , Protected from 51% attacks by the chaos effect of Coin Age, requires no more electricity than a light bulb to run.
