You need specific armor/clothing/hair mods that utilize HDT.
Installing it by itself will not do anything. Press question mark to learn the rest of the keyboard shortcuts. I installed one called HDT SMP but there is no effect. is there any mod for clothing physics in Skyrim SE.NPC Skyrim SE Skyrim MiniDresses Collection for UUNP Bodyslide at Skyrim File This is a 3BBB Amazing conversion of the Luxury Collection by ApoKrytia Skyrim Se Vanilla Armor Replacer Cbbe Skyrim Se 3bbb Keyword (UNP-CBBE ) If you download the physics file and use HDT-SMP physics.