Yes it can be

Premature ejaculation may occur with a new partner, only in certain sexual situations, or if it has been a long time since the last ejaculation. Psychological factors such as anxiety, guilt, or depression can cause premature ejaculation.
Your answer is yes to high blood pressure can cause premature ejaculation.

The medications you take could effect that. Remember the parasympathetic nerves mediate erections while the sympathetic mediate ejaculation. Also the BP is impacted by the sympathetic so yes it’s possible