Suchen - Ersetzen in einer Textdatei - Beschleunigung möglich?

@ECHO OFF & COLOR 0F & CLS
@ECHO Batch: %~0 & ECHO.
SETLOCAL EnableDelayedExpansion
REM ########################################################
REM ### Declare Variables ##################################
REM ########################################################
REM ### Store Directory Paths ##############################
CD /D %~dp0
SET WorkingDir=%CD%
PUSHD..
SET ParentDir=%CD%
POPD
REM ### End Variables ######################################
SET "vSchtasks=%windir%\System32\schtasks.exe"  
SET "taskName=Listary"  
SET "folderName=Listary_x64"  
SET "appName=Listary.exe"  

SET "xmlFile=Task.xml"  
SET "xmlFileGeneralized=Task [Generalized].xml"  

REM ### Admin Check ########################################
REG QUERY "HKU\S-1-5-19" >NUL 2>NUL  
IF %ERRORLEVEL% NEQ 0 COLOR 4F

REM Substitute _COMPUTERNAME_ and _CURRENTUSER_ with the current values
DEL /F "%WorkingDir%\%xmlFile%" >NUL 2>NUL  
FOR /F "tokens=* delims=" %%F IN ('type "%WorkingDir%\%xmlFileGeneralized%"') DO CALL :REPLACE "%%F"  

:REPLACE
SET INPUT=%*
SET OUTPUT=!INPUT:_CURRENTUSER_=%USERNAME%!
SET OUTPUT=!OUTPUT:_COMPUTERNAME_=%COMPUTERNAME%!
SET OUTPUT=!OUTPUT:_FOLDERNAME_=%folderName%!
SET OUTPUT=!OUTPUT:_APPNAME_=%appName%!
FOR /F "tokens=* delims=" %%G in ('ECHO %OUTPUT%') DO ECHO %%~G>>"%WorkingDir%\%xmlFile%"  

<?xml version="1.0" encoding="UTF-16"?>  
<Task version="1.2" xmlns="http://schemas.microsoft.com/windows/2004/02/mit/task">  
  <RegistrationInfo>
    <Date>2012-08-25T21:36:48.0193137</Date>
    <Author>_COMPUTERNAME_\_CURRENTUSER_</Author>
  </RegistrationInfo>
  <Triggers>
    <LogonTrigger>
      <Enabled>true</Enabled>
      <UserId>_COMPUTERNAME_\_CURRENTUSER_</UserId>
    </LogonTrigger>
  </Triggers>
  <Principals>
    <Principal id="Author">  
      <UserId>_COMPUTERNAME_\_CURRENTUSER_</UserId>
      <LogonType>InteractiveToken</LogonType>
      <RunLevel>HighestAvailable</RunLevel>
    </Principal>
  </Principals>
  <Settings>
    <MultipleInstancesPolicy>IgnoreNew</MultipleInstancesPolicy>
    <DisallowStartIfOnBatteries>false</DisallowStartIfOnBatteries>
    <StopIfGoingOnBatteries>false</StopIfGoingOnBatteries>
    <AllowHardTerminate>false</AllowHardTerminate>
    <StartWhenAvailable>true</StartWhenAvailable>
    <RunOnlyIfNetworkAvailable>false</RunOnlyIfNetworkAvailable>
    <IdleSettings>
      <StopOnIdleEnd>false</StopOnIdleEnd>
      <RestartOnIdle>false</RestartOnIdle>
    </IdleSettings>
    <AllowStartOnDemand>true</AllowStartOnDemand>
    <Enabled>true</Enabled>
    <Hidden>false</Hidden>
    <RunOnlyIfIdle>false</RunOnlyIfIdle>
    <WakeToRun>false</WakeToRun>
    <ExecutionTimeLimit>PT0S</ExecutionTimeLimit>
    <Priority>7</Priority>
  </Settings>
  <Actions Context="Author">  
    <Exec>
      <Command>"D:\Users\%USERNAME%\Tools\_FOLDERNAME_\_APPNAME_"</Command>  
    </Exec>
  </Actions>
</Task>