Teamviewer works slowly showing updates even though you are using Teamviewer Business or Higher and the is bandwidth is good. This may also affect other remote control tools such as Screenconnect. Using RDP however, the screen refresh rate is good.
Solution: Disable Hardware Acceleration for the Graphics Card
Instructions for Server 2008R2
Step 1. Right click on the desktop
Step 2. Choose Screen Resolution
Step 3. Click on Advanced Settings
Step 4. On the window that pops up click on the Troubleshoot tab
Step 5. Click on the Change settings button
Step 6. Drag the Hardware acceleration slider to None
Step 7. Click on Ok