A continuation of a conversation started here:
I created a separate repository here: https://github.com/GTAmodding/FramerateVigilante
Appveyor builds of test plugin now available here: https://ci.appveyor.com/project/ThirteenAG/frameratevigilante/build/artifacts
I suppose we're gonna try documenting and fixing fps related issues in GTA SA, and maybe III and VC as well.
Feel free to contribute.