Are you running the version, or are you trying to mod the Steam/Rockstar Launcher version?
For a truly "definitive" feel on modern PCs, pair the resolution fix with SilentPatch . It fixes hundreds of bugs, restores the sun glare, and improves frame rate stability. gta-san-andreas-1080p-resolution-fix-file
If you experience weird physics (like cars not reversing or swimming being impossible), ensure the Frame Limiter is ON in the display settings, or use SilentPatch to cap it at a stable 60 FPS. Are you running the version, or are you
The gold standard for this issue is the GTA SA Widescreen Fix. It doesn't just unlock 1080p; it fixes the UI scaling so your map and health bar aren't stretched horizontally. Are you running the version