I have just updated and see no difference to the overall speed of the tablet at this time. I will update you if I do notice anything with speed or battery drain, but so far, it seems stable. Thanks for watching.
I live in Viegnam and have to use PUBG.VN and that option is jot available yet, but I have mine on HDR and ULTRA settings sometimes, but it uses a lot more battery, HD-High I find is enough for my needs.