I'd like to preface this by saying I play on PS4.

Anyway, I don't really have a problem avoiding AOEs or anything. I mean I have to dodge them before 75-80% cast bar finish but that's not really the point of this post...

My question is in relation to the fact that I absolutely cannot double weave oGCD abilities without clipping into my GCD, even if it's at 2.4s. I see people in videos and on-stream doing it effortlessly, but I can't.

Also, when I do Triple Fell Cleave, at the end where you'd do Fracture > Fell Cleave > Infuriate > Fell Cleave, I cannot get the last Fell Cleave in even at 1s left on Berserk timer, and if I reverse Fracture and Fell Cleave the result is still the same. Again, I see people do stuff like this effortlessly.

I live in NA and I play on an EU server. Is latency my issue, or is it the fact that I play on a vanilla PS4?

Edit: On the little "sending and receiving" icon, on an EU server I typically get something like Sending: 624, Receiving:612 whereas on NA I get something like Sending:412, Receiving:2548. What do these numbers mean to me?