How do I display content on slideshows?
I've tested the module and tested.It works. Seems you missed the pre-configured view provided by this module. 

You can find it at http://www.example.com/jssor_jssor. Find the jssor views in the view list. You can do slider settings in the view itself.

Seems you've selected 'Content' instead of Jssor in view. If you select 'content' it display normal slider. So in order to display text on slider make sure to add Jssor in show under FORMAT options.