PowerShell
Edit|Remove
$SPInfopath=Get-SPInfoPathFormsService 
$SPInfopath | select *
 This script is to control all InfoPath Forms Services configurations from one location also to see the options which are not shown on Central Admin such as:
 
PowerShell
Edit|Remove
TypeName                                 : Forms Service 
FormTemplates                            : {urn:schemas-microsoft-com:office:infopath:ADD: 
DefaultDataConnectionTimeout             : 10000 
MemoryCacheSize                          : 250 
MaxDataConnectionTimeout                 : 20000 
MaxDataConnectionResponseSize            : 1500 
MaxDataConnectionRoundTrip               : 20000 
MaxFormLoadTime                          : 40000 
RequireSslForDataConnections             : False 
AllowEmbeddedSqlForDataConnections       : True 
AllowUdcAuthenticationForDataConnections : True 
AllowUserFormCrossDomainDataConnections  : True 
AllowUserFormBrowserEnabling             : True 
MaxSizeOfFormSessionState                : 4194304 
MaxSizeOfUserFormState                   : 4194304 
MaxPostbacksPerSession                   : 0 
MaxUserActionsPerPostback                : 200 
ActiveSessionsTimeout                    : 1440 
AllowUserFormBrowserRendering            : True 
AllowViewState                           : True 
ViewStateThreshold                       : 40960 
DataConnectionFiles                      : {Receivedocument.udcx} 
ExemptUserAgents                         : {crawler, googlebot, ms search, msnbot...} 
Instances                                : {} 
Applications                             : {} 
Required                                 : False 
JobDefinitions                           : {} 
RunningJobs                              : {} 
JobHistoryEntries                        : {} 
CanUpgrade                               : True 
IsBackwardsCompatible                    : True 
NeedsUpgradeIncludeChildren              : False 
NeedsUpgrade                             : False 
UpgradeContext                           : Microsoft.SharePoint.Upgrade.SPUpgradeContext 
Name                                     : 
DisplayName                              : 
Id                                       : 7629408e-c9c5-472c-ac90-3ac490f818a5 
Status                                   : Online 
Parent                                   : SPFarm Name=SharePoint_Config 
Version                                  : 818789 
Properties                               : {} 
Farm                                     : SPFarm Name=SharePoint_Config 
UpgradedPersistedProperties              : {}
 

Also to change the settings for example set "Memory Cache Size" or "Enabling View State":

PowerShell
Edit|Remove
$SPInfopath.MemoryCacheSize=100; 
$SPInfopath.AllowViewState=1;