Complex sentence: He generally supported women's rights, improved the country's infrastructure, and maintained a good educational system relative to other African countries, but he also presided over one of the most repressive regimes in Africa.
Split into simpler sentences: He generally supported women's rights, improved the country's infrastructure, and maintained a good educational system relative to other African countries. On the debit side, however, he presided over one of the most repressive regimes in Africa.