Many community patches include a d3d9.dll wrapper to cap the framerate at 60 FPS, preventing the game's physics from breaking.
Depending on your academic focus, here are three ways to structure a paper on this topic: xxxsonacom patched
Assumption: you mean a local application or device named “XXXSonaCom” that needs security/firmware/software patches. If you meant something else, tell me. Many community patches include a d3d9