What’s a good answer to “why are you looking to leave your current role if the truth is your bored and are about to get a below inflation pay rise?

Title really. I can barley wake up to get out of bed in the morning I'm that done with it, I know I'll get a pay rise in a new role because I'm not gonna go to a job that isn't significantly more but feel that “time for a change” isn't a strong answer especially as I've been there for only 2 years