Excessive ram usage in Fab

I’ve been downloading some Fab Assets, and I’m trying out the new platform, and it’s really good, but I noticed some slowness in Unreal, although the rest of the PC worked fine, I got curious and opened the task manager. I found this

It seems quite strange to me, in the years I have been using Unreal I had not filled the 64 GB

my pc is this r
yzen 7950X3D
64gb Ram DDR5
4070 ti
Nvme 2TB Gen 4 WD Black SN850x