extreme/intermittent lag spikes on NA/EU world

I play on Lamia and have had really bad lag for the past 12 hours or so. I even got error 90000 several times but that soon disappeared and i just lagged horribly. Like cast protect and it takes effect 10 minutes later. Click aetheryte and the menu pops up 15 minutes later. These started the series of maintenance and logging issues to be precise.

Unfortunately, I only experience lag spikes when i play on Lamia but not on Anima which is a JP world.

I do not wish to play on JP worlds. I only made a character there to test the game if it has the same problem. It doesn't the game works perfectly in those world. I even managed to get the character to lvl 8.

Help?