Experiencing the same thing, as are friends of mine. I know its not the system spec's causing this. It's usually just one unit getting stuck, either a gathering unit, or even just yesterday an artillery unit alone was causing the issue. Once it died after fighting a few GLA stinger sites, the intense slow down went away.
Seems to be patch related for sure, not system, didnt happen like this prior to somethin around 1.3 (pre ZH, if i recal correctly, its been so long).
I think EA has given up on updating this game too =/ doubt we'll see a fix.
