Masamune is the 'unofficial' English-speaking Japanese server (mostly for Oceanic players). Some west coast NA players also choose to play here because the lag to the JP servers is not bad enough to force them to play on the NA servers. I'm sorry you are dealing with this -- and I hope one day they add more regional datacenters (hopefully at least in the Oceanic region and somewhere in the dead center of Europe). As this game becomes more popular, I foresee this happening. I live on the East Coast of the US and my lag to the JP datacenter was horrible (200+ ms). It made endgame almost unplayable (especially since my ISP is not great). I'm sorry but I really think you'll need to jump to a Japanese server if you want the game to be playable... for now. They will offer transfers soon, but it will in all likelihood be a 'paid' service. I do think they should have designated an official server as an Oceanic server... but they didn't and that's why the players decided on Masamune.