ETN linux and macOS command line wallets are very slow.
So are windows. Very,very slow. 
Either I am also confused as to why the command wallet ETN is slow, maybe there should be a fix problematic on the command.
Put simply, The Monero blockchain copy simply cant handle as many transactions that ETN produces now, and we will be 1000s of times bigger in the coming years.
A permanent fix is on the way. It will be a big deal for crypto as a whole when it arrives.