This happens to me as well. Since the last DDoS attack to NA servers the lag is constant all day long, and I stop receiving packages leading into disconnections. I play on PlayStation 4 from South America (Chile) so my only option to play is in NA servers.

Never had this issue before, been playing perfectly fine until yesterday (07/25). I play in Gilgamesh, and when I try any instance I get huge amounts of lag, even when I try rotations in training dummies I have lag enough to stop what I'm doing.

Checked my internet service three times with my ISP and I'm sure it is not a problem in my internet service.

I wonder if this problem is massive or not but it is something that must be addressed.