Struggling with Deadlift Form
I'm currently in a bit of a struggle with my deadlift form at the moment. It seems almost as if I can't get my back and chest into the position I want to pull the bar off of the floor when I pull heavy. My back is extremely rounded when my legs are stiff as I'm setting up my shins to be 1" from the bar. From there, it's extremely difficult to pull my chest up and not drop my hips; as I'm pulling the bar off the floor I don't feel like I'm getting much lat engagement even though I'm trying to cue my shoulders to go into my back pockets.
I've always had problems with my flexibility and mobility even as a child; when bending over to touch my toes, the farthest I can get my finger tips is about halfway down my shins.
My height is 6'1, and I weigh 230lbs without having a massive gut in the way. I'm not sure if my body's proportions are out of whack or if I'm just awkwardly built.
Should I do rack pulls instead that allow me to get into a more suitable position for a proper pull movement? Or is it possible that I can do some mobility/flexibility stretches to increase my ability to get in the correct position for the deadlift?
Current numbers at sets of five are: squat-270, ohp-115, bench-195, deadlift-295. I've been running the program since Dec. 17, 2021. Starting numbers at sets of five were: S-205, ohp-85, bench-155, deadlift-225.
I can also provide a form check if that would help.
Thanks, and sorry if this was posted in the wrong category.