Wrath's a lot easier to play, I'd say, because the mythic paths change things completely for your builds. It makes builds a lot more flexible, too, compared to Kingmaker/base PF1e.
WotR is one of my absolute fave games - probably because I GM Pathfinder 1e - so I'm super glad to see someone getting into it! Have fun, take your time. The only major timer is right at the beginning, and doesn't affect too much. Make sure you recruit Daeran, Woljif, and Ember!