Same with my starter, and in 4 days my IPA went from 1.072 to 1.024. Not checking again til day 12 where I am hoping to cold crash for two days and on day 14 dry hop. That was with a 1.5l stir-plate starter. It had no lag time either, significant airlock activity within 8 hours, and I did not oxygenate the IPA's wort fwiw.