Mui bundle size?

Hello,

I have a problem with mui lib that is taking almost 2.5MB of my bundle size

I only have named import like this import X from "@mui/material/X" and also setup in my .babelrc file

[
      "babel-plugin-direct-import",
      {
        "modules": ["@mui/material", "@mui/icons-material"]
      }
    ],

I do not know what I am missing ?

Thanks