While in glasses mode, the unit is operating at reduced performance
- Significant decrease in display brightness
- Screen flicker
- Displays powering off and back on
- Sluggish system performance
This is more than likely being caused by a power supply with inadequate wattage to properly power the headset. When not connected to the battery cradle, a power supply (either A/C power supply or battery bank) of 30W or higher is recommended for XR Elite as stated here.