Talking about cluelesness, everything in this sentence has no bearing on local game perfomance. We don’t discuss network connection issues. FPS has nothing to do with server calls. What you’ve written is gibberish.
These are BfA requirements. The ones I provided are written on the back of WoW: Legion box. You know, the version of the game Classic is based on.
Do research of your own. BfA requirements are irrelevant to Legion\Classic requirements.
What you’ve proposed is sharding spanning not one zone but series of zones. That doesn’t change the fundamental issue with this approach for an MMORPG, which again is splitting the world in mirrors, you’ve simply proposed larger mirrors.
And it shouldn’t be implemented in the state proposed by you either as it’s even worse because you want more sharding and ok with turning world into a series of instances because your PC can’t handle it.