Once fixed, Sonic Generations runs like a dream – even at 1440p/4K with uncapped framerate mods.
Unlike modern games that auto-detect hardware dynamically every time they boot, Sonic Generations (released in 2011) relies on a static configuration file. When the game launches, it scans your CPU, GPU, and driver version. It then compares this scan to the data stored in GraphicsConfig.cfg . Once fixed, Sonic Generations runs like a dream
C:\Program Files (x86)\Steam\steamapps\common\Sonic Generations Locate and delete all files, specifically GraphicsConfig.cfg AudioConfig.cfg DefaultInput.cfg Open Steam, right-click Sonic Generations , and select (instead of Play). it scans your CPU