Well, first off, its a MMORPG, not C&C online. Don\'t expect hoards. Next, 5 updates /sec for every actor seems a little high, but thats a moot point do to the fact that you can\'t probably approximate the bandwidth off just positional stats and non-compresible packet headers and error-checking codes will eat up more bandwidth than the game anyway. In the end system, each new actor will have a range of data to queue up with everything from visible inventory (for building the mesh) to visual enhancements. Never-the-less, bandwidth is still not that big of a concern with more of the action being interpolated more than you think (updates/sec will scale to your available bandwidth). Hyper-accurate position is only important where aim is a factor. With this being an RPG, I doubt that will be the case (see EQ style targeting for an example). Also, I don\'t believe the \'zoning\' issue has been completely resolved. I would like transparent zoning that scales nicely and maximizes bandwidth, but we\'ll see what comes up. Lastly, I don\'t see what \"3D\" has anything to do with net-lag besides the fact you have a couple more coordinates. The client does all the work for build and displaying the graphics, the network traffic just gives it the abstract data it needs (i.e. Bob the dwarf with Platemail and Shiny Sword and current position, then next position, then next, etc.). Compression of the data-stream just adds more work for the client and server, leaving you less time and resources to do that labored 3D rendering.
Yes, the 3D performance (in fps) will go up with a dynamic (scaled to constant fps) or user configurable clipping plane (there is almost always a clipping plane, its just farther out to show off the world I imagine) and fog. Then again, most slow speed you\'ve been seeing has been sovled with the new CrystalSpace engine. Smart culling and good level design are much perfered to hacking off arbitrary scene data. Possibly some good-old diminishing detail models a\'la terrain engines for larger scenes? In the end Bigfoot is right, if you want a faster game, buy better hardware. Yeah Capitalism!