I would probably start stretching it out a little at a time. How about move to 2hr 15 for a week?
Mine was on 2.5hr E until 4-5 wks and then I started stretching out gradually to the 3hrs. He didn't manage to stretch from 3 to 4hrs at the 4 month mark though and it was 6 months before he could move to a longer time between milk feeds, when he solids between. Some LOs are like that for various reasons.
Just to be sure - there are some babies who need to eat more frequently, those who are prem or low birth weight or have medical issues, if you think there is any reason to stay at 2hrs you might want to discuss with your health professional first.