No you're doing fine. The story is and writing is good to the point to where sometimes your 2000-2500 words seem too short. I think the people who want less words are just lazy and want quick chapters for instant gratification without caring for the substance of the story.
when I read a chapter of death mage it's at least double or triple the amount of words you write per chapter so it's fine to stay with the amount you currently write per chapter
Unless you plan on starting to use privilege or start locking chapters behind coins (and fast passes) then i say it’s fine how it is right now, the length of the chapter dictates how much coins readers will use/pay to read the chapters