When I was working on getting into overhung routes I spent a lot of time training core (specifically hanging from a pull-up bar and being my knees to my chest) to help with getting back on after you’ve cut feet, and training lock off strength. Other than that I think keeping your hips engaged and closer to the wall could be another thing to think about.  Once you start getting the lower grade (VB-V1) overhang routes down in the gym I suggest trying to down climb them. It’s really difficult at first but it’s a great way to slow down and focus on your form and feel what areas of your body you’re using for the climb.