I'm not sure the best way to phrase this so it might come across as word vomit. I had a multi year relationship that in the final months my partner discovered she needed Pelvic Floor Therapy for a myriad of reasons. Her doctor said she's "Abnormally tight" even for the clientele the doctor sees.

In the months following our (amicable, still good friends) split when I'm having PIV with another person it almost feels like nothing? I need to concentrate tremendously to finish, and generally by that time sex feels more like a chore than it does fun. I have noticed that anal gets me to finish in a reasonable time frame.

My ex and I hooked up recently and with PIV I finished quicky.

After context my question is, is it possible that an abnormally tight partner resulted in similar conditions as "Death Grip syndrome"? If so, what could I do to reset?