Binaries for dynamic libraries of tree-sitter (usually compiled with C compiler) would be smaller than that. For example this [1] .so bundle for 107 different grammars is ~137 MiB.

Unless by "compiled in", some in-lining of the C code into Rust codebase is meant.

[1] https://github.com/emacs-tree-sitter/tree-sitter-langs/relea...