Benchmark works fine. I get a score of 13,999 on maximum settings. Tried uninstalling GeForce Experience on the chances that it interfered with FFXIV in the background. Nothing changed.

System Specs (From the FFXIV System Information 'Display' under 'Settings')
Code:
-=-=-=-=-=-=- System Information -=-=-=-=-=-=-

SYSTEM_OS	Windows 10 Home 64-bit (6.2, Build 9200) (17763.rs5_release.180914-1434)
SYSTEM_CPU	Intel(R) Core(TM) i5-9600K CPU @ 3.70GHz (6 CPUs), ~3.7GHz
SYSTEM_CORE_NUM	SYSTEM_CORE_LOGIC 6  SYSTEM_CORE_PHYSICS 6
SYSTEM_BIOS	A.40
SYSTEM_LANGUAGE	English (Regional Setting: English)
SYSTEM_MEMORY	16319.535MB
SYSTEM_VIRTUAL_MEMORY	134217727.875MB
SYSTEM_PAGE_FILE	18751.535MB
SYSTEM_STORAGE	C:\    SYSTEM_HARDDISK_DRIVE    SYSTEM_TOTALDISC_SPACE 930.912GB    SYSTEM_FREEDISC_SPACE 730.321GB
SYSTEM_STORAGE	D:\    SYSTEM_HARDDISK_DRIVE    SYSTEM_TOTALDISC_SPACE 465.752GB    SYSTEM_FREEDISC_SPACE 177.431GB
SYSTEM_DIRECTX_VERSION	DirectX 12
SYSTEM_GRAPHICS	NVIDIA GeForce GTX 1060 6GB
SYSTEM_GRAPHICS_DEVICE	\\.\DISPLAY1
SYSTEM_GRAPHICS_CHIP	GeForce GTX 1060 6GB
SYSTEM_GRAPHICS_MAKER	NVIDIA
SYSTEM_GRAPHICS_VRAM	6052.000 MB
SYSTEM_GRAPHICS_SHARED_VRAM	8159.768 MB
SYSTEM_GRAPHICS_DAC	Integrated RAMDAC
SYSTEM_GRAPHICS_DISPLAY_MODE	1360 x 768 (32 bit) (60Hz)
SYSTEM_GRAPHICS_DRIVER	C:\Windows\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_b49751b9038af669\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_b49751b9038af669\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_b49751b9038af669\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_b49751b9038af669\nvldumdx.dll
SYSTEM_GRAPHICS_DRIVER_VERSION	26.21.0014.3086
SYSTEM_GRAPHICS_DRIVER_DATE	5/21/2019 20:00:00
SYSTEM_GRAPHICS_DRIVER_LANGUAGE	English
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER	3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE	SYSTEM_SUPPORT
SYSTEM_SOUND	LG TV (NVIDIA High Definition Audio)
SYSTEM_SOUND_DEVICE_ID	{9E14394A-B335-4828-9283-266B97158CD7}
SYSTEM_SOUND_DEVICE_NAME	nvhda64v.sys
SYSTEM_SOUND_DRIVER_VERSION	1.03.0038.0016
SYSTEM_SOUND_DRIVER_LANGUAGE	English
SYSTEM_SOUND_DRIVER_DATE	3/18/2019 00:00:00
SYSTEM_SOUND	Realtek Digital Output (Realtek(R) Audio)
SYSTEM_SOUND_DEVICE_ID	{B0228866-7AE3-4BE6-8C98-6D7A6C25EB1F}
SYSTEM_SOUND_DEVICE_NAME	RTKVHD64.sys
SYSTEM_SOUND_DRIVER_VERSION	6.00.0001.8581
SYSTEM_SOUND_DRIVER_LANGUAGE	English
SYSTEM_SOUND_DRIVER_DATE	11/27/2018 00:00:00
SYSTEM_INPUT	{6F1D2B60-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME	Mouse
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 3  SYSTEM_GAMEPAD_BUTTON 5  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{6F1D2B61-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME	Keyboard
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 128  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{FAD23880-8EFA-11E9-8001444553540000}
SYSTEM_INPUT_NAME	USB OPTICAL MOUSE 
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 669  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{FAD4A980-8EFA-11E9-8002444553540000}
SYSTEM_INPUT_NAME	USB OPTICAL MOUSE 
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 0  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{FAD4A980-8EFA-11E9-8003444553540000}
SYSTEM_INPUT_NAME	USB OPTICAL MOUSE 
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 0  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{FADF57E0-8EFA-11E9-8005444553540000}
SYSTEM_INPUT_NAME	Mad Catz V.7 Keyboard
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 6  SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT	{FAE1A1D0-8EFA-11E9-8006444553540000}
SYSTEM_INPUT_NAME	Mad Catz V.7 Keyboard
SYSTEM_INPUT_REMARKS	SYSTEM_GAMEPAD_AXIS 0  SYSTEM_GAMEPAD_BUTTON 0  SYSTEM_GAMEPAD_FOV 0