Some users have reported issues with the NVIDIA driver version 581.** and later combined with a NVIDIA 40 series and later graphics card, possibly related to the frame generation features they added in that version.
One user reported disabling smooth motion remedies the issue. You can do this in the NVIDIA app under the Graphics tab. I imagine disabling it for GTA V specifically would work, but you can also disable it globally.
If that doesn't work, the other reported solution is to revert to an older graphics driver (pre-581.**). You can find older drivers for your system here: https://www.nvidia.com/en-us/drivers/
I've also just done some additional research and it seems NVIDIA has been working out some bugs related to smooth motion in later driver versions, so updating your driver may also fix the issue. If it does, please let us know so we can help other users!