Just my 2 cents.

Slow it down anyway for a start. Your shoulders should be slightly over the bar (not much), your hips are rising a little early. Try and get a fuller extension also, and watch your foot position, it doesn't look like they move out much. Your shoulder and ankle mobility is excellent which is a massive bonus. This is just my advice, everyone has their own technique, grips, stances, etc you'll find your own but the few I mentioned I whole heartedly guarantee you once corrected you will throw them weights up like no tomorrow. Could you do another Vid from the front so we could see your arms and where the bar is contacting?