FPS Drop / Stutter Fix

A small compatibility mod for Cities: Skylines 1.

Download from Steam Workshop

It currently fixes:

• FPS Booster audio errors that can repeat every frame.
• Automatic Pedestrian Bridge selection errors and missing pillar-title spam.
• Transport Lines Manager vehicle-spawn retries when a line has no valid model.

Each fix is enabled only when the affected mod is loaded. Valid behavior is left alone. Saves, Workshop files, and game assemblies are never changed.

Supported mods

• FPS Booster
• Automatic Pedestrian Bridge
• Transport Lines Manager 14

Requirements

• Cities: Skylines 1.21.1-f9
• Harmony 2.2.2-0, Workshop item 2040656402

All supported mods are optional.

Build and install

powershell -NoProfile -ExecutionPolicy Bypass -File .\scripts\build.ps1
powershell -NoProfile -ExecutionPolicy Bypass -File .\scripts\install.ps1

The package is created in outputs\CS1StutterGuard. The local install stays at %LOCALAPPDATA%\Colossal Order\Cities_Skylines\Addons\Mods\CS1StutterGuard so existing installs update cleanly.

Logs are written to Cities_Skylines\Cities_Data\Logs\CS1StutterGuard.log.

To uninstall, close the game and remove only the CS1StutterGuard local mod folder.