A lot of times, when you’re on a slope or uneven lie, work on your impact. You can feel that the clubface now points at the targets. Now I feel that my body is way more open so now if I cover it with my right side the face can be square so the ball will start on line.
So remember, when you’re on a slope, make sure part of your pre-shot routine is to check if I go to impact but stand too square, where am I aiming?