Greasy hair on top w baking soda and ACV


I’ve been using Apple cider vinegar and baking soda while following the steps and am on my 4-5th week now but my hair seems greasy. Although it’s just on the top like if you stroked your hair it’s greasy. But when I feel my roots there soft and definitely not greasy. I’m not planning on breaking the system any time soon but does anyone have anything that might help this? Or should I just give it more time?