The environment in my Tobii Pro VR Integration freezes sometimes. Why? And how do I fix this?

VR Integration Tobii Pro
a.    This is likely related to the tracking being lost. Check if the HMD or the base stations are obstructed by anything and are placed at the right height: above head height (2m+) angled down 30-45 degrees.
b.    It could be a performance issue as well, make sure the computer follows specifications and no other processes or programs are running when running Tobii Pro VR Analytics.