Steam
%LOCALAPPDATA%\AION2\Saved_Steam\Config\Windows\engine.iniSeason 134d 07h
Guides · Graphics Optimizer
Pick from 23 GPU profiles, six goals and the issues you are seeing. The page builds an engine.ini block with conservative Unreal Engine 5 settings: copy it, download the .ini, or use the script with backup and undo.
Quick setup
The preset starts from a verified GPU profile, adds the fixes for what you are seeing and leaves the rest alone.
Optional. It starts from the goal and issue values; change only what you need.
Applying it
The path depends on the store. If engine.ini does not exist yet, launch Aion 2 once and close it normally.
Steam
%LOCALAPPDATA%\AION2\Saved_Steam\Config\Windows\engine.iniPurple · NCSoft
%LOCALAPPDATA%\AION2\Saved_Global\Config\Windows\engine.iniKR / TW
%LOCALAPPDATA%\AION2\Saved\Config\Windows\engine.inialso Saved_TWThe game may rewrite engine.ini on exit or when graphics settings change. If that happens, apply the preset again. We do not mark the file read-only: it can break frame generation.
The block
The block is organized into groups, all inside [SystemSettings]. These are the ones you will notice most; the values move with the GPU, goal, issues and fine tuning.
The frame cap for heat and noise, one-frame thread lag and overall sharpness. The internal resolution scale only appears in maximum flight-effects optimization mode.
t.MaxFPSr.OneFrameThreadLagr.Tonemapper.Sharpenr.ScreenPercentage
Draw distance, static and skeletal mesh LOD, and foliage density. The heaviest cost in towns, raids and the Abyss.
r.ViewDistanceScaler.StaticMeshLODDistanceScaler.Nanite.MaxPixelsPerEdgefoliage.DensityScale
The streaming pool is matched to the profile's real VRAM, with temporary memory and periodic cleanup to reduce pop-in and stutter after map travel.
r.Streaming.PoolSizer.Streaming.MaxTempMemoryAllowedr.Streaming.MipBiasgc.TimeBetweenPurgingPendingKillObjects
Lumen, shadow quality and distance, cascades and screen-space reflections. The PvP goal and the frame-drop issue lower this load first.
r.Lumen.Reflections.Allowr.ShadowQualityr.SSR.Qualityr.ContactShadows
Emitter rate and particle light quality. Lowering them helps in large groups and mass PvP without turning skills off completely.
r.EmitterSpawnRateScaler.ParticleLightQuality
Motion blur, depth of field, lens flare, bloom, ambient occlusion, fog and water reflections. Chromatic aberration is always off because it muddies combat readability.
r.BloomQualityr.Fogr.VolumetricFogr.Water.SingleLayer.Reflection
Before you apply it