*Regular Computer with no maintenance
*A Combination of all
There's no lag from Nexon servers at all. You can have some lagspikes or lag for a certain moment. But there's no way you gonna lag all day if you have a good computer + at least a regular internet.
I can say this based on my situation. I dont even have a graphic card, only the built in on the modem, Dual Core 2.7 ghz and 2GB of ram. and I dont lag at all, I never lag; maybe some lagspikes or D/C for hacks but never lag, not even a complete game.
Players can use Flamethrower, Napal, Fire, Gas, M32 all together and I dont lag.