Theres not a lot to tune - they are for running dos applications
ABOUT THE AUTOEXEC / CONFIG
The autoexec.bat and the config.sys were files created for MS-DOS and Windows 3.x as an easy solution of loading the files required for various devices as well as the operating system to properly run. These files are required for later revisions of MS-DOS and Windows 3.x to load. However because Microsoft is trying to steer away from Windows these files are not required for Windows 95, Windows 98, Windows NT or Windows 2000.