The core of the issue lies in and multi-core processing. GTA San Andreas was built in 2004. Modern operating systems handle mouse input and CPU threading differently than Windows XP did.
When you install the game from a CD, Steam, or Rockstar Launcher, the standard gta_sa.exe does not know how to talk to modern USB polling rates (125Hz–1000Hz). The result? Your character spins in circles, or the camera pulls toward the sky when you touch the mouse. gta san andreas windows 88110 mouse fixzip
Launch the game. Your mouse should now be fully functional. Alternative Fix: The "Task Manager" Method The core of the issue lies in and multi-core processing
: Ensure you are running the game as an Administrator to allow the DLL to hook into the game process. or Rockstar Launcher