Probably not by a lot. Acela's main issues are the fact that the line is super old and curvy. In Metro-North territory, for example, the tracks are placed too close to each other for the trains to tilt around the curves to increase their speed.
From what I understand, the new Acelas that Amtrak just ordered will be faster, and have higher tilt, though it remains to be seen how much they can actually take advantage of those features on the current Northeast Corridor. https://slate.com/business/2016/09/amtraks-avelia-liberty-is...
From what I understand, the new Acelas that Amtrak just ordered will be faster, and have higher tilt, though it remains to be seen how much they can actually take advantage of those features on the current Northeast Corridor. https://slate.com/business/2016/09/amtraks-avelia-liberty-is...