Don't get me wrong. Lag will always be an issue in online games because of connectivity issues.
But Neverwinter has really problems.
For example loot drops on the ground generate a little bit of lag. You could watch this kind of behavior on the last Winter Event. Instances where player spammed their Gifts and Parsel Packs like crazy also lagged like hell.
AOEs always generate lags. The more AOEs in one fight the more rubberbanding you will experience. The best way to experience this is in the Kabal instance. I mean I like the basic design of the jumping puzzle but all these AOEs and push effects lead to a gigantic lag. I had over 3 seconds delay. Render it almost impossible to complete the jumping puzzle. And before someone screams it is my connection. I upgraded recently from 5 Mbit to 50 Mbit and nothing changed.
And I did the Kabal Instance with 4 other guild mates experiencing the exact same issues. And it is like i said not only the Kabal Instance, everywhere where AOEs are used it lags like hell and making the combat system of Neverwinter not really that entertaining. And don't get me wrong. I love the combat system in Neverwinter. But with such lags it is really....
Platypus wielding a giant hammer, your argument is invalild!