Calling C functions in JS directly?

[Patric Lemo]

Hi!

I tried FastAPI, but it's not fast enough. Is there any way to call the C functions directly, only considering the case of no parameter and no return value? For example, you can store the function address in a BigInt and then invoke it directly in JS. Are there any risks here? Can it be achieved? 

I wonder if anyone knows any other ways to speed up native calls