Roads?

Hello. I am scheduled to drive from Springfield MO airport to mountain home Arkansas second week of June. This is the first time driving in Arkansas. I have motion sickness issues beside a prior medical condition (stroke).
I was wondering whether the Drive is curvy, ups and downs with steep slopes 😩. I am traveling alone and booked a toyota carola rental.

Can someone who is local or have driven this route before let me know the terrain of this drive please? 🙏 I would rather cancel now than take a risk.