Samsung Settings

Disable WIFI
For best GPS mapping accuracy please disable your WIFI
Disable Put Unused Apps to Sleep
Some phones save battery by putting app to sleep. ( Android 2.0 SDK 29 and above )
1. Go to SETTINGS >> Search "sleeping apps".
2. Put unused apps to sleep - Turn off this feature.
3. Select "Never sleeping apps" >> add D3_VR.
Disable App Optimisation from Special Access
1. Go to Settings >>> Apps.
2. Click on the 3 dots icon on top right corner and select "Special Access".
3. Select 'Optimise Battery Usage'.
4. Select 'All' from drop down list and toggle off 'D3_VR'.