That's like saying most programming languages fall within similar runtime performance, but translation is also like porting codes. Doing that line by line or pe

That's like saying most programming languages fall within similar runtime performance, but translation is also like porting codes. Doing that line by line or per-function especially for human reading can be hard and/or weird and/or borderline wrong, like you might have to stuff class definition for a struct, guess variable types from name, explain "// onload means entrypoint in HTML", things like that.