One thing you can try is to lower the Smoothing Iterations back to 2, then set the Smoothing Type from Base Shape Matching to Generic. Sometimes this helps with some smoothing issues when using Base Shape Matching. fefecoolyellow posted at 8:50PM Mon, 27 July 2020 - #4394783

i tried a higher number of smooth modifier, it works fine ,but the higher number of smooth, the more resources it takes ,and it make the clothes heavy and so hard to load and my computer doesn't support dforce unfortunately