Problem with videos 1080p/60fps from youtube or twitch

So Hallo to all that decided to come help me with my little problem. I bought a One max a while ago and I'm pretty happy with it so far but there is something bugging me. I cannot for the love of god view 1080p/60fps vids on whatever program i use. The moment i play the video it starts normally and then just freezes 2-3 seconds after that. I have no problems with 720p/60fps or 1080p/30fps. Any 1 got an idea what may be causing the problem? I'm on stock Android 5.0.2 not unlocked, rooted or w/e (international gsm version)

Thanks in advance.