My focus is always on delivering results as efficiently as possible.
What typically works better is either a monthly retainer, where you're paying for my expertise and attention, or a project-based fee if it's more of a one-off engagement with clear start and end points.
The retainer model is great for longer-term partnerships where I'm really embedded with your team. It allows me to be laser-focused on moving the needle for you. For shorter sprints, a project fee can make more sense. That way you know exactly what you're paying for a defined scope of work upfront.