How to make ionic option buttons more visible to users?


I have made an app using ionic framework. I have lists in that app and for each item i have add ion-option-button.
The problem is that now, once I am doing closed beta testing, many of my users say that it is very hard to actually detect the swipe functionality. I want to do an automatic swipe on the first element on the list each time the view is loaded but I did not find any support for that.
All I could do was to put an arrow icon at the end of each item. That did not receive great feedback.
How can I make the swipe functionality more visible?