problems with KLEO THEME

Good morning:

I bought the KLEO theme on June 20, 2018, but I have many problems with it:

1. the website became too slow

2. There are problems to enter the wordpress administrator as a different user than the administrator. When entering user data and password, I only go to the front end.

3. When I’m the administrator of the theme, I create different user roles, but none of them work, the platform only assigns administrator roles.

4. I do not know if SENSEI is really included, because it does not work. The lessons are created, but when they leave the platform and re-enter, they are automatically deleted.

5. When questionnaires are created, the multiple choice questionnaire does not work, only the questions are seen and the response options to mark do not appear anywhere.

Before buying KLEO, I asked if it came with the accessories I need as a sensei, they told me it was included.

I want you to please tell me how I solve these problems?

Thanks,

Eibar Cortés