i am use chinese. so as i post a topic ,the topic url  contain Chinese characters , like this :
https://www.e9bbs.com/bbs/lspzone/黑色翘臀的lsp#post-10

but when copy this url and paste in the other place the url become:
https://www.e9bbs.com/bbs/lspzone/%e9%bb%91%e8%89%b2%e7%bf%98%e8%87%80%e7%9a%84lsp#post-10

i know how to change forum slug or URL ,but failed to find the topic URL setup . 

I want to my topic URL set like WordPress can chooses by like different format , anyway is better than above .

thank