Just Discovered CompactRS

[MajorMagee]

I don't know how I've gone all these years without running across this before.

Ultra-lightweight, native Windows transparent file compressor built in Rust. Leverages the Windows Overlay Filter to save disk space without performance loss. Features a modern, bloat-free Win32 GUI, batch processing, and multithreaded compression (XPRESS/LZX). Zero dependencies, <1MB binary.

Github Link

I tried this using the LZX compression model and in addition to saving storage space CFS3 now loads much quicker.

I'm using it on a SSD, and have a very fast CPU, so there is no loading or decompression delay for these smaller files.

If you are using JSGME to manage your Mods, you want to compress those files as well.
For any files with the same name they will stay compressed as they transfer in and out of CFS3.
Ones in the Mod with new names will decompress during the move into the game.
For Mods you are going to leave installed long term, you can re-run CompactRS on the CFS3 folders after the Mod install to shrink those as well.