I would like if Mixy.Money is more familiar with another mixer by having a feature edit fee or costume. I know Mixy Money uses a charge fee of 3 to 5 percent of the amount + 0.0007 BTC. but for me, it's enough expensive when I want to try your mixer.
Competition will most likely play an important role here, and it is clear to everyone that competition in the mixing industry is more than serious. Especially after the closure of CM. If they are still attractive in spite of everything, they probably see no reason to reduce earnings and lower fees.
Maybe better to OP to make it happen my suggestion, and about language, I repeat it again to make it English by default, because 1st I open and try mixing, I bit kinda confused about where I have to put the address sent.
Once you change the language of the site, in subsequent sessions the cookies will do their work and your preferred choice of language will be opened every time. But certainly turning to a more globally acceptable language as the default is a better choice, plus many are not familiar with the Cyrillic alphabet.