Since the last patch (yes, I own the expansion!) often I get the error message "You have been removed from the match due to low FPS".

I already have 40 hours spent in the game and the game worked fine. This issue appeared after the expansion and usually only during "Dominion" when I try to conquer the middle zone which has a lot of soldiers (therefore less FPS I guess). Therefore I have already lowered the graphic details.
I copy and paste part of my DXdiag.

Code:
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System Information
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      Time of this report: 10/18/2018, 22:41:48
             Machine name: DESKTOP-5JMTPM3
               Machine Id: {75ECFC67-C015-4BEB-A25C-898597109A45}
         Operating System: Windows 10 Pro 64-bit (10.0, Build 17763) (17763.rs5_release.180914-1434)
                 Language: Spanish (Regional Setting: Spanish)
      System Manufacturer: ASUSTeK COMPUTER INC.
             System Model: G75VW
                     BIOS: G75VW.223 (type: UEFI)
                Processor: Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz (8 CPUs), ~2.3GHz
                   Memory: 16384MB RAM
      Available OS Memory: 16336MB RAM
                Page File: 16900MB used, 3941MB available
              Windows Dir: C:\WINDOWS
          DirectX Version: DirectX 12
      DX Setup Parameters: Not found
         User DPI Setting: 144 DPI (150 percent)
       System DPI Setting: 96 DPI (100 percent)
          DWM DPI Scaling: Disabled
                 Miracast: Available, no HDCP
Microsoft Graphics Hybrid: Not Supported
           DxDiag Version: 10.00.17763.0001 64bit Unicode

------------
DxDiag Notes
------------
      Display Tab 1: No problems found.
        Sound Tab 1: No problems found.
        Sound Tab 2: No problems found.
        Sound Tab 3: No problems found.
          Input Tab: No problems found.

--------------------
DirectX Debug Levels
--------------------
Direct3D:    0/4 (retail)
DirectDraw:  0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay:  0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow:  0/6 (retail)

---------------
Display Devices
---------------
           Card name: NVIDIA GeForce GTX 660M
        Manufacturer: NVIDIA
           Chip type: GeForce GTX 660M
            DAC type: Integrated RAMDAC
         Device Type: Full Device (POST)
          Device Key: Enum\PCI\VEN_10DE&DEV_0FD4&SUBSYS_21151043&REV_A1
       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: 10175 MB
    Dedicated Memory: 2007 MB
       Shared Memory: 8168 MB
        Current Mode: 1920 x 1080 (32 bit) (60Hz)
         HDR Support: Not Supported
    Display Topology: Internal
 Display Color Space: DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709
     Color Primaries: Red(0.639648,0.330078), Green(0.299805,0.610352), Blue(0.150391,0.059570), White Point(0.313477,0.329102)
   Display Luminance: Min Luminance = 0.500000, Max Luminance = 270.000000, MaxFullFrameLuminance = 270.000000
        Monitor Name: Generic PnP Monitor
       Monitor Model: unknown
          Monitor Id: CMO1720
         Native Mode: 1920 x 1080(p) (60.010Hz)
         Output Type: Interna