@bumbertyr - I sincerely want to know what you know about that, with the why and how the "starting up" is the root of the 2x lag issue. I was always under the impression that it was due to too much player activity at once overloading their server capability.
ask @Its2sharp4u he experienced it too. the moment 2x "turned on" the lag would practically double.
It's hard to prove it when 2x EXP/DROP hasn't happen anymore for the past 2 weekends and the fact everyone may not experience the same issues. But from memory when I was in the middle of killing mobs and the transitions from before 2x to after 2x gave me the results of "the moment 2x "turned on" the lag would practically double".