It may have been a PR, but it wasn't near a 5RM. Why the straps?
Your stance is too narrow, but I can't see your feet to tell you how much more to widen it. Definitely need to turn the toes out to about 15 degrees.
Take each step and do it separately and deliberately. You're blending everything together and nothing is really correct. Dropping your hips and knocking the bar forward to set the back every time, is one example.