Original Post — Direct link
Just recently built an entirely new pc, got back into rainbow six siege and immediately ran into a a sensitivity bug that makes aiming nearly impossible. It feels slower when i'm slightly moving my mouse, but when I move my mouse faster (like when trying to turn around), my view begins to accelerate and slingshots way past where I was trying to look. Almost like there is a 0.5-1 second input lag on my mouse only. Mouse buttons and keyboard have no input lag. I'm getting a consistent 90+ fps regardless of whether or not Im moving my mouse. All drivers for my video card and motherboard are up to date, and I am using the most recent version of windows 10. Happens only in R6, and happens in both vanilla and the vulkan versions. Looked around for fixes and apparently these issues have existed since 2015? How are these things still coming up? No one seems to agree on how to fix it either. Some say it might be a cpu issue, but mine is brand new.

Mouse: A wired corsair mouse, not sure which exactly but I have experienced the same issues with another mouse.

Hardware:
-MSI B450 GAMING PRO CARBON AC ATX AM4 Motherboard
-AMD Ryzen 7 2700X 3.7 GHz 8-Core Processor
-Corsair Vengeance LPX 32 GB (2 x 16 GB) DDR4-3200 Memory
-Gigabyte Radeon RX 5700 XT 8 GB GAMING OC Video Card
-Rosewill 1200 W 80+ Gold Certified Fully Modular ATX Power Supply

Possibly related computer settings/Attempted fixes:
-All drivers for my video card and motherboard are up to date.
-Windows 10 game mode is off
-Changed the compatibility settings in the r6.exe to "disable fullscreen optimizations" and "overide high DPI scaling" by the application.
-Made sure aim assist was disabled and even tried different v-sync options in both rainbow and amd's video card software.

Rainbow Settings: (copy/pasted from documents>My Games>Rainbow Six-Siege>44b42eeb-58f9-4271-ba4d-267afeb2307d)
[DISPLAY_SETTINGS]
;ResolutionXXX => 0 for autodetection
;RefreshRate => 0 will let DirectX pick it
;WindowMode => 0 fullscreen / 1 windowed / 2 borderless
;AspectRatio => 0 display / 1 resolution / 2..N as options
;VSync => 0 disabled / 1 frame / 2 frames
;UseLetterbox => 0 disabled / 1 enabled
;DefaultFOV => Default vertical field of view (degrees)
;TAASharpenFactor => Sharpen filter applied to TAA
;RenderScaling => Percentage of the display resolution at which 3D rendering is performed
;TAAScaling => Percentage of the display resolution at which TAA is performed
;UseAmdAGS => Enables usage of AMD AGS library for additional info in crash reports
;UseDynamicResolution => Enable dynamic resolution on vulkan
;DynamicResolutionTargetFPS => Target FPS on the GPU when dynamic resolution is enabled
;DynamicResolutionMin => Minimum render scaling value the dynamic resolution will be able to reach
;DynamicResolutionMax => Maximum render scaling value the dynamic resolution will be able to reach
;VulkanWhitelistedLayers => Semicolon separated list, with all the Vulkan layers you want to enable, like VK_LAYER_VALVE_steam_fossilize;VK_LAYER_RTSS
;InitialWindowPositionX/Y => -1 for centering
GPUAdapter=0
Monitor=0
ResolutionWidth=1920
ResolutionHeight=1080
RefreshRate=60.020000
WindowMode=2
AspectRatio=0
VSync=0
MaxGPUBufferedFrame=1
UseLetterbox=0
DefaultFOV=90.000000
EnableAMDMultiDraw=1
TAASharpenFactor=0.250000
RenderScaling=50
TAAScaling=100
UseAmdAGS=1
UseDynamicResolution=1
DynamicResolutionTargetFPS=78
DynamicResolutionMin=25
DynamicResolutionMax=100
VulkanWhitelistedLayers=
InitialWindowPositionX=478
InitialWindowPositionY=194

[HARDWARE_INFO]
GPUVendor=AMD
GPUDeviceId=0x731f
GPUSubSysId=0
GPUDedicatedMemoryMB=8176
GPUScore=8431.000000
GPUScoreConf=0.627120
SystemMemoryMB=32718
CPUScore=1406.641113
HardwareNotificationEnable=0

[QUALITY_SETTINGS]
QualityPresetName=Custom
TexturePresetName=Very High

[CUSTOM_PRESET_SETTINGS]
Shadow=3
Reflection=2
LOD=3
AO=1
Shading=1
MotionBlur=1
LensEffects=2
DepthOfField=1
TextureFiltering=3
AntiAliasingMethod=0

[READ_ONLY]
DefaultValuesVersion=12

[INPUT]
RawInputMouseKeyboard=1
InvertAxisY=0
InvertMouseAxisY=0
Rumble=1
AimAssist=0
YawSensitivity=20
PitchSensitivity=10
DeadzoneLeftStick=15
DeadzoneRightStick=15
MouseSensitivity=50
MouseYawSensitivity=36
MousePitchSensitivity=24
MouseSensitivityMultiplierUnit=0.020000
MouseScroll=1
XFactorAiming=0.020000
ToggleAim=0
ToggleLean=1
ToggleSprint=0
ToggleCrouch=1
ToggleProne=1
ToggleWalk=0
ToggleGadgetDeploymentGamepad=1
ToggleGadgetDeploymentKeyboard=1
AimDownSights=50
AimDownSightsMouse=36
ControlSchemeIndex=0
ControllerInputDevice=0

[DISPLAY]
;FPSLimit => Limit the game's fps. Minimum of 30fps. Anything below will disable the fps limit.
;Console => Enables the in-game console which is mapped to `/~. Will only work if the key is not already mapped.
Brightness=50.000000
FPSLimit=0
Console=0
over 4 years ago - Ubi-Swaggins - Direct link
Hey Nichard.Rixon,

Sorry to hear that you have been having issues.

Thanks for letting us know that you appear to have resolved the issue.
over 4 years ago - Ubi-WheelyDuck - Direct link
Originally Posted by Dabbas.
you might have "Mouse Acceleration" turned on by default, you can turn it off but downloading your mouse software.
This is great feedback and may well help someone else who has this trouble Dabbas.

In this case however Updating the drivers for the players mouse was the solution





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