Complex sentence: But as the drug enhancement increased gradually the mainstream masses who were attracted in the 80's began losing interest, to where virtually only the small faction of extreme admirers had any interest in Women's Bodybuilding.
Split into simpler sentences: But as the drug enhancement increased gradually the mainstream masses who were attracted in the 80's began losing interest. At this point virtually only the small faction of extreme admirers had any interest in Women's Bodybuilding.