Honestly, 2% cut is nothing. If you like your new job better for whatever reason, less stressful, more fulfilling, whatever, 2% is less than nothing, your personal life matters and should weight in.

I don’t know about your career paths, but I could see it being a problem if there was opportunity to grow in the old job but not on the new one. But everything else being the same, an insignificant pay cut to do something you like significantly more is a win in my book.