1.17-pre3 severely increasing CPU and DISK usage to 100%

Upon opening a new world to test building in on this new pre-release, my computer was audibly running worse than before. This could've been explained by the rendering and generation of a new world, however when that was over and I started exploring nearby chunks, my computer's performance did not improve. Investigating what was wrong with it, I could tell it was either the CPU, Disk, or a fan. Opening Task Manager, it was apparent that both CPU and DISK had risen to 100%, something previously unseen by me with previous versions of Minecraft, and concerning considering I have a fairly strong system to run games on. (attached is an image containing system information and diagnostic report from razer synapse)

Steps to reproduce

open the game in 1.17-pre3

Generate a new world

explore surrounding chunks in creative

Expected Results

I had expected to be able to explore the world and find someplace to build safely, without endangering my PC