There is no official PC port for Grand Theft Auto: Liberty City Stories
The GTA Re: Liberty City Stories mod is the primary way to experience this title on PC with modern visual standards. Built on the GTA Vice City engine, it functions as a total conversion project that brings the PSP/PS2 exclusive to a native PC environment. 🎨 Visual & Performance Review
HD Texture Packs: Specific texture mods, such as the HQ Textures Port by Clara, replace original low-resolution assets with modern, sharp textures for buildings, roads, and foliage.
The most effective way to improve visuals is through comprehensive mod packs or specific engine-level tweaks.