Are you doing a slight row with your arms, or does the lens make it look like your arms are moving? Think of your arms as two chains - the weight hangs, you don't pull it.
Sometimes it seems that your hips are going up before your shoulders. Pull back, not up.
The beginning of your going back down is not the mirror of the last bit of the lift - it should be. You are
leaning forward, the bar pulling you down. That will become an injury.
Get lower to the bar - take off your sandals.
Deadlifts are worth the effort. Good job.
Be safe.
Uhh . . . did you want a technique critique? Oops. Hope you don't mind.