Checked whatifgaming and I don't see any similarities in the English. Also checking that site, I learned that the developer is actually from Ubisoft Massive like I guessed before; which explains the not so good (but still completely understandable) English.
Re-read what I wrote. I said the game performance (which gets worse when you raise thee graphical quality of the game) effects the latency. You can test it easily by yourself by limiting the FPS of an MP game that you play on regular basis and see how that effects the latency to the worse. Or if you got an old computer in your house, just launch a new game on it that will straggle to run it at good frame rate and see how much of a worse latency you'll get, even though it's still connected to the same modem/router that your newer PC is connected.
And it's true that the dedicated servers aren't rendering the game as you see it on your own monitor (when I ever said it did?), but if those calculations that the server has to perform is too much for it to handle; everyone on the server will get worse latency to the server the same way as you get worse latency to the server if your own computer can't handle the game well (see above).
And do you really expect to see the same graphics that you saw in the E3 demonstrations upon release?