First, make sure the game is running on dedicated GPU and not integrated. Second, install Sodium + Lithium + Phosphor. Source: 6 months ago

But if you're looking to get a little more performance out of Minecraft, you should add the Sodium mod. Source: 6 months ago

Not to be confused with Sodium, the Minecraft rendering engine rewrite: https://modrinth.com/mod/sodium. - Source: Hacker News / 9 months ago

What version of sodium are you using? The newest are on modrinth not curseforge https://modrinth.com/mod/sodium. Source: 11 months ago

If its FPS, then I recommend installing some fps mods like Rubidium, or entity culling. If you're on fabric then Sodium, heres a video with other FPS mods combined with sodium for max performance. Source: 11 months ago

If you're lazy you can use Universal Minecraft Editor (Windows only, can open worlds from mobile versions). Source: about 2 years ago

If you don't like the time limitation, you can additionally download Universal Minecraft Editor where you can manipulate the demo time (there are also tutorials on youtube for this). Source: almost 3 years ago

You have to somehow extract the structure from world files (stored in LevelDB format so there is no one file which contains the structure). You can try Universal Minecraft Editor which is Windows-only but can handle worlds from Android version as well. Otherwise you have to figure out yourself how to extract the structure (which is probably too hard for you). Source: about 3 years ago