I just logged on to play and noticed my ping was at ~150 on EU servers, I have not changed anything since I last played, other than getting a new keyboard and headset.
I tested my internet and it was at a normal 10 mbit/s.
I have the same problem in native, but only on some servers like ZHG TDM, where I have ~40 ping usually, but I now have 350.
My ping in US and CN servers has not changed.
I tried restarting my computer but nothing changed.
EDIT: I had normal ping for a bit, but when the map changed I got the terrible ping back.
My ping is now in the 200-300 range.
EDIT: Same thing happened again, I played for a bit then I got 200 ping out of nowhere.
I did logon to TS briefly before playing, maybe it has something to do with that?