Alors si tu ne peux pas changer les textures, c'est parce qu'elles sont console par défaut. Pour cela, il faut que tu ailles dans Documents, My games, Watch dogs, et le fichier GamerProfil qui est en xml, tu l'ouvres avec le bloc note et tu copies colles ça :
<GamerProfile bFirstUplayBoot="1" bFirstMPBoot="1" bNeverShowUplayFlow="0" bAskAgainLaterToS="0">
<SoundProfile MusicEnabled="1" GlobalVolume="100" MusicVolume="100" LicencedMusicVolume="100" SFXVolume="100" VoiceVolume="100" AutoplayMusicInVehicles="1" VoiceChatEnabled="0" VoiceChatPlaybackVolume="50" />
<RenderProfile PCCustomTextureQuality="medium" PCCustomAntialiasingQuality="temporalsmaa" RAWCPUScore="2000.11" AlphaToCoverage="1" ResolutionX="1920" ResolutionY="1080" Quality="_runtime" QualityEditor="pc_editor" WindowMode="2" WindowPosX="-1" WindowPosY="-1" Force16_9="0" ForceWidescreen="0" WidescreenFOV="0" OutputScalingFactor="1" AspectRatio="6" VSync="1" MaxPrerenderedFrames="2" RefreshRate="60" MaxDriverBufferedFrames="0" ShowFPS="0" IsCalibrationSetup="1" ClustersZPassMaxLOD="1" NewBrightness="1" Contrast_v3="1" NewGammaRamp="0.895" GammaRampR="1" GammaRampG="1" GammaRampB="1" AllowAsynchShaderLoading="1">
<CustomQuality>
<quality ResolutionX="1920" ResolutionY="1080" EnvironmentQuality="ultra" AntiPortalQuality="pc" PostFxQuality="high" TextureQuality="pc" TextureResolutionQuality="medium" WaterQuality="ultra" ParaboloidReflectionQuality="ultra" DepthPassQuality="pc" VegetationQuality="ultra" TerrainQuality="ultra" GeometryQuality="ultra" LodDitheringQuality="pc" ShadowQuality="ultra" ShadingQuality="high" RoadQuality="pc" EditorQuality="pc" ParticlesQuality="ultra" DeferredFxQuality="pc" HDR="1" SuperSampling="0" HighPrecisionNormal="1" RenderSplashes="1" RenderRain="1" MotionBlurQuality="pc" SSAOQuality="hbao+_high" DepthOfFieldQuality="pc" AntiAliasingQuality="temporalsmaa" id="_runtime" />
</CustomQuality>
</RenderProfile>
<NetworkProfile EnableNatTraversal="1" VoiceChatEnabled="1" OnlineEnginePort="9000" OnlineServicePort="9001" LanHostBroadcastPort="9004" LanClientBroadcastPort="9005" ScanFreePorts="1" ScanPortRange="1000" ScanPortStart="9000" />
<GameProfile Sensitivity="1" MouseLookSensitivityX="50" MouseLookSensitivityY="50" MouseInvertX="0" MouseInvertY="0" UseMouseSmooth="0" Smoothness="0" Sprint_UseToggle="1" Stroll_UseToggle="0" Gamepad_vibration="1" UseCompassMiniMap="1" UseRoadSignHilight="1" UseSubtitles="1" UseReticle="1" UseWaypoint="1" UseHintsAndTutorial="1" UsePdaNotification="1" UseMinimap="1" UseDynamicMission="1" UseItemAndRewards="1" UseMissionUpdate="1" UseFelony="1" UseEquipmentAndTools="1" UseAmbx="0" DifficultyLevel="1" IEn="1" NeutralFireEnabled="1" FriendlyFireEnabled="1" selGamepadControlScheme="0" CameraSpeedCoefficient="1.1" CameraSensitivityCoefficient="1.1" CameraInvertX="0" CameraInvertY="0" selAimAssist="2" selDifficulty="1">
<FireConfig QualitySetting="VeryHigh" />
<AutoConsoleCommands />
</GameProfile>
<RealTreeProfile />
<EngineProfile>
<PhysicConfig QualitySetting="VeryHigh" />
A la place de ce que tu as. Ca, ce sont mes paramètres, j'ai pratiquement la même config que toi