Minecraft performance on Xbox is garbage

I really like Minecraft and what Microsoft has been doing to the game, but I am very disapointed with the performance of Minecraft on the Xbox One.

My minecraft world doesn't have that much stuff going on, it's just my little house, sheep and wheet farm, all in the same place, the game runs fine, 60fps, 1080p, but then, my friend invited me to play on his world, he plays on the Windows 10 version of
the game and has been playing on that world for over 2 years so it has some really neet stuff, he has a big house, a bunch of farms all over the world and stuff like that, and the game runs like a piece of garbage, I'm on the Minecraft Beta program so I can
see the FPS on the top of my screen, IT IS RUNNING AT 20/25FPS!!! what the actual hell man, his world is not even that big and full of stuff, it's just a nice medium size minecraft base, and before you say that there's probably a sh*t ton of mobs under the
ground destroying the game performance, the game also lags horribly on the servers, especially the lobbys where there's a bunch of people, I need to run my game on the lowest freaking settings possible to get at least 35fps on these conditions, I just want
to know why hardware that can run triple A titles at 4K 60fps can't run Minecraft properly, is that some lazy optimization? I made the test yesterday by installing minecraft windows 10 edition on my crappy PC, it has an AMD A6 Dual Core processor, 4Gb of RAM
and that's it, and guess what? IT RUNS MY FRIEND'S WORLD JUST FINE AT AROUND 50/55FPS!!!!

WHAT THE FRICK, I think that Minecraft on the Xbox One runs more like and App than a Game, so it's limited to something I don't know. On top of all that, the game takes an eternity to load, and crashes for no reason very frequently, no matter if it
is the Beta or the final release version.

:)