Most of these issues are because most of the exchanges like coinbase have yet to implement segwit. In coinbase they are not using batch transactions either. Just by Coinbase doing this it will cut congestion on the bitcoin network dramatically . Next year at this time we will be complaining why coinbase hasn't opened a lightning channel. All of us bitcoin users need to apply pressure to these exchanges. I'm personally looking at bitflyer here in the US to by bitcoin with fiat as coinbase is a failure as far as i'm concerned.