That account is not led by a person with performance knowledge despite what the name suggests. Previously, its author failed to profile the code and use existi

That account is not led by a person with performance knowledge despite what the name suggests. Previously, its author failed to profile the code and use existing package which does the vectorized sum suggested by multiple people and was comparing the code where the compiler couldn't prove it doesn't go out of bounds versus pointer arithmetics. The comments to other posts of that account pointed that out yet the feedback was completely ignored. It's a skill issue to try to want to use FFI for this over implementing a function in C# out of personal spite.