Can you fix my sentences?

According to the research of the Korea Education Association, most Korean students want to study in America, and many Korean students are studying as an exchange student or a foreign student in America nevertheless, there are many teachers receiving high salary in Korea. Furthermore, many foreign students as well as Korean students are studying in America because America has more excellent educational programs than others. In this way, teachers' salary is important of course, but it is more necessary for students to improve educational environment such as school amenities or professors' ability to teach students well.