Make sure you are running on the Fastest Quality setting (configurable when you choose a resolution).
(Mac users: If this screen isn't showing up, try holding the option key down when launching virbela)
Set your Target Frame rate to 10.
- Open the Cog menu in the upper right of your screen
- Select Preferences
- Click the 10 button
Try Low Draw Distance:
We have found that non-apple external monitors can cause performance issues, try unplugging these devices.
You may want to set your power settings to High Performance.