If you don't want to download third-party files, you can manually force the game to run on a single CPU core, which is often the cause of the glitch. Launch GTA San Andreas and out of the game.
Open (Ctrl+Shift+Esc) and go to the Details tab. Right-click gta_sa.exe and select Set Affinity . Uncheck All Processors and select only CPU 0 . If you don't want to download third-party files,
The most effective way to solve this issue permanently is to use a community-made fix that replaces the bugged input method with modern raw input. If you don't want to download third-party files,