I should probably clarify why I want to cut so much Leia material - simply put, it doesn’t directly relate to our heroes (Rey and Finn), which means that things like Leia using the Force or even Poe’s scenes with Leia are beside the point when the movie is already on the long side.

There’s a very instructional segment in the Lord of the Rings Appendices about this problem, and the solution that they found was to cut anything that wasn’t directly related to Frodo, with very few exceptions. I think this is a good rule of thumb in this case.