I looked into this when making them - admittedly the models and textures aren't amazing. They're ripped directly from the game and as it's all third person, the models don't need to be as detailed which shows in this game where you're quite close to the models. I'm planning to go over this pack in the future and use an AI to upscale the textures, whilst I will change the models myself. I may just remake some of the textures.
I honestly don't remember them looking THAT rough, but if the problem generated, because the models were taken directly from the game, perhaps you should take a look at the E3 swords mod ?and HD Rework Project
These mods have especially high quality for textures for swords, so perhaps you can ask the creators if you can borrow their models
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These mods have especially high quality for textures for swords, so perhaps you can ask the creators if you can borrow their models