Your mod was only containg textures so i used Cathedral Assets Optimizer: https://www.nexusmods.com/skyrimspecialedition/mods/23316
But in the case where the mos contain also nif and a plugin then you have to use Nif Optimizer and convert the FORM 43 from the plugin to FORM 44 by opening it in the CK and save it.
I see what you did there ahaha, The point of the mod is to make them look smoother and less jagged than vanilla. I might come out with a rugged version soon.
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https://www.nexusmods.com/skyrimspecialedition/mods/23316
But in the case where the mos contain also nif and a plugin then you have to use Nif Optimizer and convert the FORM 43 from the plugin to FORM 44 by opening it in the CK and save it.