persistent extern user INDEX plr_bSharpTurning = 0;
persistent extern user INDEX plr_bThirdPersonFixedCrosshair = 0;
persistent extern user INDEX inp_bRawMouse = 1;
persistent extern user INDEX inp_iKeyboardReadingMethod = 2;
persistent extern user INDEX inp_bAllowMouseAcceleration = 0 ver(1);
persistent extern user FLOAT inp_fMouseSensitivity = 1;
persistent extern user INDEX inp_bMousePrecision = 0;
persistent extern user FLOAT inp_fMousePrecisionFactor = 4;
persistent extern user FLOAT inp_fMousePrecisionThreshold = 10;
persistent extern user FLOAT inp_fMousePrecisionTimeout = 0.25;
persistent extern user INDEX inp_bInvertMouse = 0;
persistent extern user INDEX inp_bFilterMouse = 0;
persistent extern user INDEX inp_bAllowPrescan = 1;
These are my settings found in persistentsymbols.ini (...\Steam\userdata\11xxxxxxx\22xxxx\local\)
For me it's smooth.