I did a T3 to T2 international-to-domestic transfer last during the 'Summer of Hell.' Although it wasn't necessarily horrid for DL, it was still quite busy. I had a planned connection time of 3 hours. Delta recommends a minimum of 70 minutes for an international-to-domestic transfer at JFK between terminals 2 and 3. Your 95-minute time should be sufficient.
Oh, and welcome to FlyerTalk.