Terrain generation options (pre caves and cliffs/post caves and cliffs)

I kinda miss the old terrain generation from before the caves and cliffs it was more subtle and smooth and nostalgic wish they added an option to set the terrain generation option in the menu. since I noticed a significant fps drop which affects most budget pcs and some low tier gaming setups.

I want a setting in the world creation menu (when you create the world) where you can have same features but different terrain generation this satisfies both groups the people who want older nostalgic terrain generation and the people who want more realism when it comes to terrain generation its like a win win situation. both for bedrock edition as well as java edition.

advantages:

1. allows players with budget devices to play the game with better fps like on my older asus vivobook before caves and cliffs I was getting 40-50 fps but after that in the caves and cliffs part 1 and 2 it became too laggy to properly play the game only the servers were the ones which werent laggy like my fps dropped from 40-50 down to 25-30 fps with constant fps drops.

2. allows us to play older survival worlds but with the benefit of all the new features available for the recent most version of Minecraft. like i remember losing multiple survival worlds where i had made progress i just wanted to get newer features but it ended up totally changing the terrain which made my world unrecognisable like my spawn was gone my mines were also gone it was back to square one with the only benefit of having good tools.