Yes, I definitely thought WoA was slow. It’s my least favourite book in the cosmere, if I’m being honest. I think part of the reason is that the ending of TFE is so intense, and you’re ready to jump into the sequel and are expecting the pace to resume from where it left off, but... it doesn’t.
Instead, there are lots of meetings, and people talking, and talking, and that definitely wore me down. I’m not the type of reader who likes that sort of thing, at least, not in an action-fantasy book.