@Betialai

I suppose you must change the slideInterval parameter on the module config.

By default it’s configured to change every 5 minutes:

slideInterval 5 * 60 * 1000

If you change that value for this one:

slideInterval 10080 * 60 * 1000

It must be change every 7 days.

7 x 24 = 168 hours a week.
168 x 60 = 10080 minutes a week.

Hope it helps