I Also have that problem, but only when a MMO is on Sale… When I take it offline, everything runs fine again… Also the Menues are very very smooth… I Think, that we have some different Performance Problems here…
And it can’t be the Hardware, itself…
I have the lags on:
Samsung Series 7 Slate (Win8, Core i5, 4GB RAM, Intel I3000, Game on SSD)
Desktop PC (Win 7, Core 2 Duo, 4GB RAM, GeForce GTX 260, Game on HDD)
Desktop PC (Win 8, Core i7, 16 GB RAM, GeForce GTX 660, Game on SSD)
What ever the Problem is… Perhaps, the game calculates too much in the Background… AND: I only have 50% CPU on the Core2 (devided on both cores), so that can’t be it eather…