With 436.48 Nvidia driver, there seems to be improvement. There is a guaranteed stutter when you spawn in from map overview to first person view or during all the flags animation after spawning. The stutters seem to stop after the first stutter.
With 441.08 Nvidia driver and BFV Oct. 31 update, there is improvement with DXR stutters. Now it only stutters from map view to first person view. There seems no stutter after you are first person view.
On 1/23/2020 with Nvidia 441.66 driver, there seems to be stutters in the transition from map view to first person view. There seems to be no stutters after that.