It's a very general issue since the release. It was not the case before, at least for good pings.
My little finger tells me the new maps or/and units are the cause.
All in all, the release on the 23rd of May definitely feels wrong. Releasing 2 division once every two week was cool, and the devs could have kept this rythm untill 6th of June.
Now, this "rushed" release even gives a feeling of "something is broken". I had great hopes, and I suddenly fear the devs are not actually commited to making the game reach wide success (player base being split too much, AI takeover, no reagequit/report policy, etc). Or else, there are financial issues. But, ok, I'm off topic already.
Plz devs, do fix these laggs.