Horizon Zero Dawn launched on PC little over a month ago with numerous performance and technical issues, which developer Guerrilla Games has been chipping away at. While the last patch fixed a bug that kept you as a baby Aloy forever, the latest update is all about performance increases.
Patch 1.04 address multiple reported issues across the game but is headlined by a CPU optimization that Guerrilla says could increase performance up to 10% on some systems. The change also helps the performance during cutscenes and dialogue transitions, which could often see the frame rate dip incredibly low in pivotal story moments.
Elsewhere the patch touches up banding issues that players using HDR were reporting, as well as a fix for mouse sensitivity that would go out-of-sync with the setting when the frame rate was not stable. Fixes for issues around aiming bugs and geometry pop-in have also been included, with Guerrilla keeping tracking of existing issues and asking players to keep the team updated on new ones they might be encountering. You can read through the full patch notes below.