I just started being more systematic about taking notes, and I've found it to make reading both more pleasurable and more memorable. I write marginalia, as well as keeping a separate notebook, and it keeps me more engaged with the author, as if it's more of a conversation than a one-sided lecture.
You know what is reading for the rushed? Audiobooks. Once I started listening to audiobooks on my commute, walking the dog, doing household chores (laundry, cleaning) I went back up to about 50 books per year. I listen at 1.5x to 2x speed. Love it.