A script to configure network adapters to align with this blog post: http://lifeofageekadmin.com/network-performance-vmxnet3-windows-server-2012-r2/

AdapterSettingsUpdater.ps1

#Fixes Network performance issues on certain Windows Server VMs when under CPU contention 
#Set global settings
$adapters = @()

netsh int tcp set global chimney=Disabled
netsh int tcp set global autotuninglevel=Disabled
netsh int tcp set supplemental custom congestionprovider=none
netsh int tcp set global ecncapability=Disabled
netsh int ip set global taskoffload=disabled
netsh int tcp set global timestamps=Disabled
netsh int tcp set global RSS=Enable
netsh int tcp set global rsc=disabled

#Get list of network adapters for loop
$adapters = Get-NetAdapter -Name "Etherne*" |select name

#Set adapter specific settings for each adapter
foreach ($adapter in $adapters) {
    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName "Large Send Offload V2 (IPv4)" -DisplayValue "Disabled" -NoRestart
    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName "Large Send Offload V2 (IPv6)" -DisplayValue "Disabled" -NoRestart

    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName ” IPv4 Checksum Offload ” -DisplayValue “Disabled” -NoRestart
    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName ” IPv4 TSO Offload ” -DisplayValue “Disabled” –NoRestart
    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName “Large Send Offload V2 (IPv4)” -DisplayValue “Disabled” -NoRestart
    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName “Large Send Offload V2 (IPv6)” -DisplayValue “Disabled” –NoRestart
    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName ” Offload IP Options ” -DisplayValue “Disabled” -NoRestart
    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName ” Offload tagged traffic ” -DisplayValue “Disabled” –NoRestart
    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName ” Offload TCP Options ” -DisplayValue “Disabled” -NoRestart
    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName ” Recv Segment Coalescing(IPV4)” -DisplayValue “Disabled” –NoRestart
    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName ” Recv Segment Coalescing(IPV6)” -DisplayValue “Disabled” -NoRestart
    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName ” TCP Checksum Offload (IPv4)” -DisplayValue “Disabled” –NoRestart
    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName ” TCP Checksum Offload (IPv6)” -DisplayValue “Disabled” -NoRestart
    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName ” UDP Checksum Offload(IPv4)” -DisplayValue “Disabled” –NoRestart
    Set-NetAdapterAdvancedProperty $adapter.name -DisplayName ” UDP Checksum Offload(IPv6)” -DisplayValue “Disabled” -NoRestart
}