Millia notes: Disrespect Ramlethal H.Sword pressure with Mirazh
HONESTLY this one is kind of nuanced. You can *never* completely stop Ram's pressure, but you can force her to have to cover additional options by using Mirazh.
Make sure you FD Ram's c.S, then mix up using Mirazh and jump to escape different variations of her pressure. When she becomes preoccupied with those options, other options like dashing and pressing buttons can become available to you as well.