Entering a Chunk Causes Lag Spike in the Caves and Cliffs DataPack

Hi Mojang,

I was recently trying to Play On the new snapshot 21w17a to check out the new features, But Instead, I was getting lag spikes all over the place! When I saw chunk borders, I realized that whenever I enter a New chunk, It causes me to lag. So, I hope you Can Fix the Problem...It was occurring On the New 21w17a Caves And Cliffs DataPack.

Thank You!