Where can I find fast spatial querying?

Hi,

I’m developing a game where super fast spatial querying is a must, and I’m guessing many other games before have had this requirement (definitely not the first time this subject has been brought up on these forums).

So, how come there are no de facto standard go-to implementations of super fast structures like quad-trees? Ones that just work, and don’t require me to write a ton of code and going through a week of debugging and trying to speed up the implementation.

These structures seem like such a standard thing… Maybe I just don’t know where to look?