Huge FPS drops in Perimiter in the past week?

Anyone else experiencing this? The moment I enter Perimiter the FPS drops to 2-3 and it lasts for 15-20 seconds. After that the FPS normalizes.

I’m not aware of anything that’s changed just in the last week. The situation of significant lag pops up every couple weeks for someone, it seems. There’s multiple threads in the support Workarounds, Issues section. And a recent thread here in General:

Maybe one of the large roaming fleets passing through…?