If you're using Deno and run into the limitations of the JavaScript language/ecosystem, you use its FFI to call out to libraries written in languages like C and C++.
Similarly you might address a performance issue in your C code by writing assembly code, which is the most powerful language essentially by definition, and which of course has plenty of downsides.
If you're using Deno and run into the limitations of the JavaScript language/ecosystem, you use its FFI to call out to libraries written in languages like C and C++.
Similarly you might address a performance issue in your C code by writing assembly code, which is the most powerful language essentially by definition, and which of course has plenty of downsides.