I've noticed the worst lag ever on the last few hours.

I was in halatali HM as tank and not only people but also enemies would "teleport".
I needed to press buttons twice for combos to work. Overpower seemed like it missed and then after like 10 seconds 3 waves of lagged overpowers hit everything and mobs teleported. This happened AT LEAST 5 times during halatali HM.

I had no major problems before (except for a few lag spikes now and then) till yesterday.

Completely unbearable lag making the game completely unplayable right now.