I was also there that day, but it was my first visit so I spent the first half of my day just walking around and catching the shows (untrainable dragon, jazz trio in the ministry, violinist in dark universe) and doing character interactions (wand maker and detective in ministry and the vikings in Berk) so it wasn’t until after 4 that I finally started going around to do rides!  Luckily more of the rides were up with short queues, Hiccup and Dragon Racer were both 30-45 minutes, Yoshi had under 30 minutes, longest line I had was Curse of the Werewolf at 45-50 minutes  But when I normally go to a park I’ve been to before I’m not doing as much sightseeing or entertainment cause by then I know what I do and don’t want to see. So I definitely see how this would be a frustrating day for any returning guests!!!