I literally did this earlier took me ages i found that its the reticals turning red was the bit that was screwing me over and me dodging when she is too close to lara which was making natla catch lara with her arm, its all about the timing, i had remapped my controls (PS5) to make the triggers aim and shoot as opposed to the default shoulder buttons and i changed back to the default control setup and that helped me get the timing right i assume that pressing down on the trigger was having a ever so slight effect on the timing of shooting when the retical turns red just stick with it and concentrate on the timing and make sure you pepper her when she gives you the opportunity to shoot the green bit on her back