As for the specific version, SKSE 16640, it seems to refer to a particular build or version of the SKSE. Speed: Allsortsofgirlscom
You're looking for information on SKSE 16640. Sky Prog Programmer Import Time #
The Skyrim Script Extender (SKSE) is a tool for modding The Elder Scrolls V: Skyrim. It provides a framework for mods to add new functionality, fix bugs, and improve performance.