Why are videos not playing right on the ZTE Grand X Max 2?

Why are videos on youtube and facebook skipping to the end when they just start to play? Again its like this phone is just a piece of complete garbage you need to properly update it I cant even believe I bought this thing. I had OBSOLETE phones that worked better than this. Yes Ive updated it yes Ive tried everything else. It comes down to some faulty lackluster phone development. FIX THESE PROBLEMS GET US AN UPDATE ASAP. WTF? 

Hmm.. Odd. Do you notice random touches on the screen of your phone?

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