As the title suggest. MC Eternal was original made to emphasize Biomes O Plently as the natural World Gen.
As far as I am aware It is generated with either the Vanilla or Realistic World Gen. Atm it has a very low Player Base,
exploration is a big factor in this Pack with lots of tools to move around even early game. Sadly the vanilla Biomes + the few modded ones like Meneglin cannot keep up to satisfy the need for that. The low Player Base could also be a + in this Situation as the loss of prrogression would not be that high.
If there are concerns about Performance there is also the Option to set a World Border at maybe 20k to 20k or reduce the amount that Firwood Forests Spawn ( when exploring they are the most taxing ones in tandem with Alps) or turn them off completely. As far as I am aware MC Eternal also has a tool for Pregen.
TL😃R I miss the Extra Biomes that BoP offers while exploring for Treasures, Battle Towers, etc. I think they could also be the cause for new Players on the Server to not stay as the mod is highly endorsed, even more so that MC Eternal is targeting a larger Player Base from Casual to well versed modded Players.