You're not alone. Southern California; Northern California; Oregon; and now, South Dakota,: the sweeter the pepper, the worse it does for me, even planted right next to the hotter ones.
I try every trick in the book, but always the same: the hotter they are, the bigger they get & the more of them there are.
I had a hard time keeping up with my Giant Jalapenos last year! They just exploded with growth - I told my wife that I was tired of picking them. She told me to stop picking them! She does not like hot peppers - My most successful produce and she can’t stand them - heat wise! What to do?