Have you addressed the soft tissue around the hip?
What is hip flexion and ankle dorsiflexion like?
A few episodes which address the psoas.
Episode 26: Hips and Seppuku: Psoas and Hip Soft Tissue Mob
Psoas Flossing and Biker Hips | Episode 301
Pro User Request Friday: Runners & Psoas Nastiness
Bubo Barbell Pec/Psoas Smash Quicky or What to Do With Those Bent Barbells
Jill Miller Smashes Your Guts! (and psoas, and tacked down viscera, and matted down abdominals…) Part 2