Massive fps drops since Windows 1709 update

Hi guys, since the latest Windows Creator update I'm having a lot of problems running FFXIV in borderless windowed.
I run a 1440p 144hz G-Sync monitor and a 1080p 60hz, the game start at 144fps like it always did but as soon as I click outside of the game windows (anywhere on my 2nd monitor, or I even just alt +tab) I can see my fps halving to 72.
The moment I click back in the game windows the framerate halves again reaching 29-35fps and it stay there no matter what, the only thing that bring it back to 144 is setting the game in fullscreen and back to borderless, but again the first click outside of the game start the loop again.
My build is:
i5 6600K
GTX 1080Ti
16gb DDR4
I tried with the following drivers: 385.69, 387.92, 387.98
I tried to enable/disable game bar/game mode/fullscreen optimisation.

Any suggestion? :(

Yeah, appears to be an issue with the new version of Windows 10 in general.

Appears its affecting other games, to the point some games just give black screen. Hopefully we'll see a new driver or a fix from Microsoft.

Google creators update. Theres a way to disable it, I'm sure.

I updated to this updated and deleted the recovery like a big dummy. I'm also suffering these issues and reinstalling windows did not work for me because the latest iso contains the Fall creators update.

I was able to get back to almost my peak fps by uninstalling the latest october nvidia driver: 387.92 - WHQL
and rolling back to the September driver: 385.69 - WHQL

It pains me to feel how intrusive these new Windows 10 updates are.

My specs:

Code:

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System Information
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      Time of this report: 10/21/2017, 19:21:42
            Machine name: KRSCHVL
              Machine Id: {9D40EE82-1D7C-4893-9A70-3C6493054118}
        Operating System: Windows 10 Home 64-bit (10.0, Build 16299) (16299.rs3_release.170928-1534)
                Language: English (Regional Setting: English)
      System Manufacturer: ASUSTeK COMPUTER INC.
            System Model: K501UX
                    BIOS: K501UX.209
                Processor: Intel(R) Core(TM) i5-6200U CPU @ 2.30GHz (4 CPUs), ~2.4GHz
                  Memory: 8192MB RAM
      Available OS Memory: 7988MB RAM
                Page File: 5994MB used, 16201MB available
              Windows Dir: C:\WINDOWS
          DirectX Version: DirectX 12
      DX Setup Parameters: Not found
        User DPI Setting: 120 DPI (125 percent)
      System DPI Setting: 120 DPI (125 percent)
          DWM DPI Scaling: UnKnown
                Miracast: Available, with HDCP
Microsoft Graphics Hybrid: Supported
          DxDiag Version: 10.00.16299.0015 64bit Unicode

          Card name: NVIDIA GeForce GTX 950M
        Manufacturer: NVIDIA
          Chip type: GeForce GTX 950M
            DAC type: Integrated RAMDAC
        Device Type: Render-Only Device
          Device Key: Enum\PCI\VEN_10DE&DEV_139A&SUBSYS_1D1D1043&REV_A2
      Device Status: 0180200A [DN_DRIVER_LOADED|DN_STARTED|DN_DISABLEABLE|DN_NT_ENUMERATOR|DN_NT_DRIVER]
 Device Problem Code: No Problem
 Driver Problem Code: Unknown
      Display Memory: 6013 MB
    Dedicated Memory: 2019 MB
      Shared Memory: 3993 MB
        Current Mode: Unknown
        HDR Support: Unknown
    Display Topology: Unknown
 Display Color Space: Unknown
    Color Primaries: Unknown
  Display Luminance: Unknown
        Driver Name: C:\WINDOWS\System32\DriverStore\FileRepository\nvami.inf_amd64_be68490c36dd0154\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvami.inf_amd64_be68490c36dd0154\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvami.inf_amd64_be68490c36dd0154\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nvami.inf_amd64_be68490c36dd0154\nvldumdx.dll
 Driver File Version: 22.21.0013.8569 (English)
      Driver Version: 22.21.13.8569
        DDI Version: 12
      Feature Levels: 11_0,10_1,10_0,9_3,9_2,9_1
        Driver Model: WDDM 2.2
 Graphics Preemption: DMA
  Compute Preemption: DMA
            Miracast: Not Supported by Graphics driver
 Hybrid Graphics GPU: Discrete
      Power P-states: Not Supported
  Driver Attributes: Final Retail
    Driver Date/Size: 9/15/2017 5:00:00 PM, 893456 bytes
        WHQL Logo'd: Yes
    WHQL Date Stamp: Unknown
  Device Identifier: Unknown
          Vendor ID: 0x10DE
          Device ID: 0x139A
          SubSys ID: 0x1D1D1043
        Revision ID: 0x00A2
  Driver Strong Name: oem134.inf:0f066de34fa96a6b:Section148:22.21.13.8569:pci\ven_10de&dev_139a&subsys_1d1d1043
      Rank Of Driver: 00D10001
        Video Accel: Unknown
        DXVA2 Modes: DXVA2_ModeMPEG2_VLD  DXVA2_ModeVC1_D2010  DXVA2_ModeVC1_VLD  DXVA2_ModeH264_VLD_Stereo_Progressive_NoFGT  DXVA2_ModeH264_VLD_Stereo_NoFGT  DXVA2_ModeH264_VLD_NoFGT  DXVA2_ModeHEVC_VLD_Main  DXVA2_ModeMPEG4pt2_VLD_Simple  DXVA2_ModeMPEG4pt2_VLD_AdvSimple_NoGMC 
      Deinterlace Caps: n/a
        D3D9 Overlay: Unknown
            DXVA-HD: Unknown
        DDraw Status: Enabled
          D3D Status: Enabled
          AGP Status: Enabled
      MPO MaxPlanes: 0
            MPO Caps: Not Supported
        MPO Stretch: Not Supported
    MPO Media Hints: Not Supported
        MPO Formats: Not Supported
    PanelFitter Caps: Not Supported
 PanelFitter Stretch: Not Supported

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