Dontero
Banned
What a bag of shit.
Sorry but why have immense scale when you are limited to 60 people in an instance? A number that's not going to inflate much even after merging because the scale of player to world is so colossally out of whack. Oh and not to mention the prohibitive nature of the hardware requirements.
If you didn't bother watching you should watch it because there is literally answer there.
TLDR: They are in midst of doing "server meshing technology" and "object contained streaming" which is second tech towards it is also WIP.
SMT gives ability for multiple servers to host single instance. Aka multiserver threading
OCS reduces A LOT amount of CPU work on single server as data is send and received in batches
Those two technologies are responsible for BOTH FPS and amount of people in instance. Once they are finished people will be able to play with a lot more FPS and with much more people.