Going band for band with koikatsu files is crazy
btw does the game getting that big slow it down a lot
Yes, having too much content in koikatsu can affect the game's performance, but this depends largely on the user's organization and management; Keep the cache folder clean, have optimized cards (or not corrupted or missing a shader zipmod - be careful, it can be missing zipmods without a problem, the lack of shaders is the real problem here - which are usually responsible for the FPS drop in the game), keep the subfolders in Chara organized but not excessively (if you have a lot, it's best to separate the ones you'll never touch outside the game and keep your favorites or the collections you want), regarding zipmods, avoid having duplicates, this includes inside the sideloader folders (it usually happens when you install the hf patch over the betterrepack), don't use plugins that generate conflicts or that don't work very well (it happened to me with the Chara morpher but this was more due to how poorly optimized my PC is and the lack of a guide for this add-on).
I would also tell you to keep the scenes separate if you won't be using Charastudio for a while (which is normal, since I usually spend around 5 to 8 hours creating or modifying characters). (I'll leave it pending) and that's it.
Most of the problems that Koikatsu faces are the duplicates that we often have and don't review. (Note: if you have zipmods with the same name but different versions (read the manifest.xml) I would recommend adding the version number to the zipmod name to avoid conflicts and preserve it (in case you have cards that use it). The game doesn't read these names; all it cares about is the manifest and the CSV.
An example:
[One Piece Headmod.zipmod] - manifest = v1.1
Having another one with the same name would overwrite it. To do this, before copying the other zipmod but of a different version to the mods folder, rename it:
[One Piece Headmod_v1.2.zipmod]
Finally, I think it goes without saying that a modern computer, but not a cutting-edge one, an average computer with a good GPU (even if it's from the famous Chinese package) can run the game and Charastudio (including VFX). No problem, but it's recommended not to have any other heavy programs running in the background (if you have plenty of RAM, then discard what I said).
Koikatsu Base is the best-optimized version compared to Sunshine, but for some reason, I've stuck with Sunshine. I still don't understand the unconscious charm it has generated in me.