hi ive fixed the blur but still got the windscreen glitch and i believe everything is up to date etc, it only happens when in vri had this bug too (non VR) at first but it disappeared after i updated my custom shaders patch in CM settings.
i still have a bug where opponents cars disappear in the windscreen zone too,
i think ther's a problem with the inside windscreen texture
And for the Blur try to disable Temporal anti aliasing in Extra FX.
Does it happen only in VR or playing on screen too ?
thanks for the feedback