Complex sentence: Even with its popularity however, Plaza Mayor in its over thirty year history lacks any substantial renovations, and retail growth both in Moore and along I-240 west of the mall has led to a dramatic decline in the number of shoppers who visit the mall.
Split into simpler sentences: Even with its popularity however, Plaza Mayor in its over thirty year history lacks any substantial renovations, and retail growth. The huge expansion of shopping centers in Moore and along I-240 west of the mall, has also contributed greatly to a dramatic decline in the number of shoppers who visit the mall.