Hello Milennia Maria,
Please follow the below steps:
1. Create a category and set the post on that category(multiple of 5) either 10, 15 or 20 posts.
2. Set number of post per slide is 5. so that in every slide, 5 post will appeared.
3. If you need two post on each slide, you can set the number of post per slide 2 as well.
Have a look here on the documentation.
Please try once and let us know what it will be.
Thank You