I just came here to report the exact same issue when I saw this thread. To avoid clutter I am including my information as well.

- How often/where does issue occur

Every instance I have entered so far experiences intense stuttering. FPS report ~120 yet the screen is visually very choppy.

- When did it start?

The latest patch

- Things tried to resolve issue

I set everything down to the lowest setting and the stuttering persisted. Tried both windowed fullscreen and fullscreen mode. Made sure drivers were updated.

- System report ( go to the 'Config' option on the Final Fantasy XIV launcher and to the right of 'System Information' click on 'Display.' )

-=-=-=-=-=-=- FFXIV Information -=-=-=-=-=-=-

MyDocument C:\Users\jaime\OneDrive\Documents
FINAL FANTASY XIV - A Realm Reborn C:\Program Files (x86)\SquareEnix
FINAL FANTASY XIV - A Realm Reborn Language 1 Region 2
ProxyEnable 0
ProxyServer unspecified
ProxyOverride *.local;<local>


-=-=-=-=-=-=- System Information -=-=-=-=-=-=-

SYSTEM_OS Windows 10 Home 64-bit (6.2, Build 9200) (17134.rs4_release.180410-1804)
SYSTEM_CPU Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz (8 CPUs), ~4.0GHz
SYSTEM_CORE_NUM SYSTEM_CORE_LOGIC 8 SYSTEM_CORE_PHYSICS 4
SYSTEM_BIOS 1.20
SYSTEM_LANGUAGE English (Regional Setting: English)
SYSTEM_MEMORY 32727.680MB
SYSTEM_VIRTUAL_MEMORY 134217727.875MB
SYSTEM_PAGE_FILE 37591.680MB
SYSTEM_STORAGE C:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 476.253GB SYSTEM_FREEDISC_SPACE 108.446GB
SYSTEM_STORAGE D:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 3726.020GB SYSTEM_FREEDISC_SPACE 3162.850GB
SYSTEM_STORAGE E:\ SYSTEM_HARDDISK_DRIVE SYSTEM_TOTALDISC_SPACE 465.745GB SYSTEM_FREEDISC_SPACE 254.826GB
SYSTEM_DIRECTX_VERSION DirectX 12
SYSTEM_GRAPHICS NVIDIA GeForce GTX 1080
SYSTEM_GRAPHICS_DEVICE \\.\DISPLAY1
SYSTEM_GRAPHICS_CHIP GeForce GTX 1080
SYSTEM_GRAPHICS_MAKER NVIDIA
SYSTEM_GRAPHICS_VRAM 8079.000 MB
SYSTEM_GRAPHICS_SHARED_VRAM 16363.840 MB
SYSTEM_GRAPHICS_DAC Integrated RAMDAC
SYSTEM_GRAPHICS_DISPLAY_MODE 2560 x 1440 (32 bit) (144Hz)
SYSTEM_GRAPHICS_DRIVER C:\WINDOWS\System32\DriverStore\FileRepository\nvaki.inf_amd64_732fe65eb095ae94\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvaki.inf_amd64_732fe65eb095ae94\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvaki.inf_amd64_732fe65eb095ae94\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvaki.inf_amd64_732fe65eb095ae94\nvldumdx.dll
SYSTEM_GRAPHICS_DRIVER_VERSION 25.21.0014.1771
SYSTEM_GRAPHICS_DRIVER_DATE 1/10/2019 19:00:00
SYSTEM_GRAPHICS_DRIVER_LANGUAGE English
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER 3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE SYSTEM_SUPPORT
SYSTEM_GRAPHICS NVIDIA GeForce GTX 1080
SYSTEM_GRAPHICS_DEVICE \\.\DISPLAY2
SYSTEM_GRAPHICS_CHIP GeForce GTX 1080
SYSTEM_GRAPHICS_MAKER NVIDIA
SYSTEM_GRAPHICS_VRAM 8079.000 MB
SYSTEM_GRAPHICS_SHARED_VRAM 16363.840 MB
SYSTEM_GRAPHICS_DAC Integrated RAMDAC
SYSTEM_GRAPHICS_DISPLAY_MODE 1920 x 1080 (32 bit) (60Hz)
SYSTEM_GRAPHICS_DRIVER C:\WINDOWS\System32\DriverStore\FileRepository\nvaki.inf_amd64_732fe65eb095ae94\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvaki.inf_amd64_732fe65eb095ae94\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvaki.inf_amd64_732fe65eb095ae94\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvaki.inf_amd64_732fe65eb095ae94\nvldumdx.dll
SYSTEM_GRAPHICS_DRIVER_VERSION 25.21.0014.1771
SYSTEM_GRAPHICS_DRIVER_DATE 1/10/2019 19:00:00
SYSTEM_GRAPHICS_DRIVER_LANGUAGE English
3.0
SYSTEM_GRAPHICS_PIXEL_SHADER 3.0
SYSTEM_GRAPHICS_VERTEX_TEXTURE SYSTEM_SUPPORT
SYSTEM_SOUND Speakers (2- High Definition Audio Device)
SYSTEM_SOUND_DEVICE_ID {0D20A7DF-C449-46AA-A90B-2A84F53A6E6B}
SYSTEM_SOUND_DEVICE_NAME HdAudio.sys
SYSTEM_SOUND_DRIVER_VERSION 6.02.17134.0001
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 9/7/2018 00:00:00
SYSTEM_SOUND Speakers (XSplit Stream Audio Renderer)
SYSTEM_SOUND_DEVICE_ID {02925531-3AEB-4BF1-9982-FDA5261C0948}
SYSTEM_SOUND_DEVICE_NAME xspltspk.sys
SYSTEM_SOUND_DRIVER_VERSION 1.00.0000.0002
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 6/26/2014 00:00:00
SYSTEM_SOUND Digital Audio (S/PDIF) (2- High Definition Audio Device)
SYSTEM_SOUND_DEVICE_ID {7AA836F4-EAE0-4AC7-A8B9-C3A5B5944BD8}
SYSTEM_SOUND_DEVICE_NAME HdAudio.sys
SYSTEM_SOUND_DRIVER_VERSION 6.02.17134.0001
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 9/7/2018 00:00:00
SYSTEM_SOUND Headset Earphone (Corsair VOID PRO Wireless Gaming Headset)
SYSTEM_SOUND_DEVICE_ID {9293549C-53B8-430B-A0D2-0EB36531EC92}
SYSTEM_SOUND_DEVICE_NAME USBAUDIO.sys
SYSTEM_SOUND_DRIVER_VERSION 6.02.17134.0001
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 4/19/2018 00:00:00
SYSTEM_SOUND Dell S2716DG (High Definition Audio Device)
SYSTEM_SOUND_DEVICE_ID {C2AD1C24-B34F-4F7F-B148-D32B803A6E78}
SYSTEM_SOUND_DEVICE_NAME HdAudio.sys
SYSTEM_SOUND_DRIVER_VERSION 6.02.17134.0001
SYSTEM_SOUND_DRIVER_LANGUAGE English
SYSTEM_SOUND_DRIVER_DATE 9/7/2018 00:00:00
SYSTEM_INPUT {6F1D2B60-D5A0-11CF-BFC7444553540000}
SYSTEM_INPUT_NAME Mouse
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 3 SYSTEM_GAMEPAD_BUTTON 8 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 {C6E1FBE0-D1C9-11E7-8001444553540000}
SYSTEM_INPUT_NAME Corsair VOID PRO Wireless Gaming Headset
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 5 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {68C2F6E0-75EF-11E6-8005444553540000}
SYSTEM_INPUT_NAME Gaming Mouse G502
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {68C2F6E0-75EF-11E6-8006444553540000}
SYSTEM_INPUT_NAME Gaming Mouse G502
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {5A0D4360-8F4A-11E7-8001444553540000}
SYSTEM_INPUT_NAME Corsair K70 RGB Gaming Keyboard
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 4096 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {5A0EA2F0-8F4A-11E7-8002444553540000}
SYSTEM_INPUT_NAME Corsair K70 RGB Gaming Keyboard
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {5A0F3F30-8F4A-11E7-8003444553540000}
SYSTEM_INPUT_NAME Corsair K70 RGB Gaming Keyboard
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {3086EEA0-75F7-11E6-8009444553540000}
SYSTEM_INPUT_NAME Apple Watch Magnetic Charging Cable
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {C0A77000-8F4A-11E7-8006444553540000}
SYSTEM_INPUT_NAME Corsair composite virtual input device
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 1024 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {5A0FB460-8F4A-11E7-8004444553540000}
SYSTEM_INPUT_NAME Corsair K70 RGB Gaming Keyboard
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 0 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {68C567E0-75EF-11E6-8007444553540000}
SYSTEM_INPUT_NAME Gaming Mouse G502
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 652 SYSTEM_GAMEPAD_FOV 0
SYSTEM_INPUT {68C567E0-75EF-11E6-8008444553540000}
SYSTEM_INPUT_NAME Gaming Mouse G502
SYSTEM_INPUT_REMARKS SYSTEM_GAMEPAD_AXIS 0 SYSTEM_GAMEPAD_BUTTON 3 SYSTEM_GAMEPAD_FOV 0