Mirko Is Overpowered, Not Up For Debate

It doesn't really seem to matter who I'm playing or what strategy I use there's just not a good way to defeat a good miracle player for some reason. Seems like every time I bring this up people give me different things to try and people tell me why she's not that strong and which characters are stronger than her and I don't struggle with really any characters except for her, blueku, and assault all for one. I suppose I'm asking for tips even though I don't think it's going to change much