The
Mini 2/3 are widely reported to overheat in hot climates, but not so much in cooler climates or in the mornings when it's cooler and the
Mini 2 should be fine. Do you have hardware decoding enabled in the app to use the
Mini 2's GPU to decode the video stream vs a software decode?
Keep in mind that most tablets have a certain operating temperature and they are lower than you may think. iPads for instance have a listed max operating temp of only 95F/35C. The Shield has a listed max of only 86F/30C.
Tablets with more processing power (
Air 2 or Shield for instance) are
less taxed, so are
less impacted by higher ambient air temps. Lower powered tablets like the
Mini 2/3 or the Air 1 (all with the A7 processor) are
more taxed by the app, and then of course
more impacted by higher ambient air temps.
Individual performance will vary of course, but in general heat is the enemy of electronics.