If you're going to use TeamViewer or any other similar approach, you'll want to run the same resolution on the laptop as you do on the desktop and then go fullscreen. That will give you the closest to "native" experience, and over a LAN there should be minimal delay. If you have Professional versions of Windows, the built-in Remote Desktop connection is actually one of the highest quality, closest to "native" experiences you can get...
- Oshyan