Low optimization

I have low optimization after version 1.21.70 of the game, before this version the game was running super well and did not present fps drops, I have a mid-high range device, With a MediaTek Dimension 920 processor and 12 gigabytes of RAM, I don't know if it's due to my device or if there's an optimization error. I would like you to improve the optimization so I can continue enjoying Minecraft, thank you very much.