I am seeing:
1. Rushed strokes.
Your stroke timing is way off. You are jerking, jabbing and starting the stroke inconsistently. Some times you take no real practice strokes at all.
2. Steering the ball. You are moving the cue to the side in an attempt at influencing the path after contact. Sadly this movement can start prematurely and mess up your stroke. I also do not believe that people who do this have a really solid stroke. Your stroke should be like on rails. It should feel like effort, and unnatural to move your cue off line! The cue wants to go straight. It's we who throw it off line.
3. I get that the idea of your video was to just show your shooting form, but you inadvertently showed a bit of lazyness. You should never planlessly bang balls like this. It builds bad habits that will creep into your game. Players who do this often become what I call "monospeed" players. They play certain shots at a very limited range of speeds and englishes, which cripple their finesse game and makes them work less on stroke smoothness. That's my interpretation of it, anyway.
I'm not going to recommend drills etc like I normally do. I recommend finding the smoothest, best quality player you possibly can and play them as much as possible. After they completely destroy you (which they should if they are what I recommended), you should analyze what they do that you cannot do. Then try to work on those things. You can't just plop down on the table and expect great results. Get a little bit angry and really work on redeeming yourself in your next encounter. Practice with a purpose, not just to look good.
This may not be true, but you play a bit like someone who hasn't got quality opposition in your everyday play. Your style looks a bit lazy and lacksadaisical. You don't look like someone who had to sit down for fifteen minutes after missing an easy shot. But that is the reality of playing someone REALLY good. That's what we want to do to others. Unless you have unreal talent, that takes work and dedication. Typically when people start working on consistent psr and stroke timing, they look very rigid and mechanical, and some of them suffer some setbacks. Don't let that discourage you. The improvement will come when it's all natural to you.