Virtual Texture Streaming - Any good resources out there?

Guys I am new to UE5.

I am using Metascan objects of the highest quality and nanites. I believe these are using 8k textures.

I am already getting texture pool warnings. I have set the pool value to 6 GB of VRAM for now, but how do I reduce the texture sizes to 4 K for the objects in my scene?

edit: Thanks I got it, LOD bias in texture.