Tera Weapons by Iromizu is an early (but still good) Oldrim mod, though the weapons are low poly compared to modern games and recent weapon mods. For whatever reason, the author was banned about 9 years ago, so I assume the mod is now abandonware and able to be used or modified by others.

I upsized all of the diffuse maps by a factor of 2 in Topaz Gigapixel (diffuse maps are more important than normal, environmental and glow maps). I applied a little bit of filtering in Photoshop (automated), and then saved the textures as DXT1 (aka BC1), since the much hyped BC7 format uses twice as much space for generally only a minimal improvement in quality. What about the redimized package? That is the upsized and filtered textures reduced back to the original resolution with a little bit more filtering after the downsizing 9the end result is the redimized textures are sharper and a little grittier than the original). You can combine textures from the 2 packages if you like, such as upsizied bows and redimized 1 handed swords. (I got the word redimized from Qarl's texture pack for Oblivion, when I first became serious about modifying the games I was playing; I used FCOM for my Oblivion playthrough. Good old days.) Some textures benefitted more from AI upsizing than others (some of the swords are a little lackluster).

For Animated Armory users, also consider the following: https://www.nexusmods.com/skyrimspecialedition/mods/58938

I intend to add Tera Weapons to my main mod, Skyrim Loot-Shooterized, soon, but the stats, level lists, crafting recipies etc will be modified as I always do when adding items to Loot Shooter. I intend to release an mesh tweaks addon to this mod - I was just examine some in Nifskope and noticed many were overly shiny. The specularity and environmental values will need to be reduced.