What is the problem with carousels?
The user needs to be in control.
Carousels often have terrible usability They move automatically (often too quickly) and have small, if any, navigation icons. A key rule of user interface design is that users need to be in control.
Why carousel be a poor web ui choice?
Sometimes carousels move too quickly, and users can't read the information, which is frustrating for them and not good for the organization trying to make a point. Sometimes carousels move too slowly, so when they do animate, it is surprising to the user. Your content resembles advertisements.
Do website carousels work?
Carousels may seem flashy and cool but they're simply not effective when it comes to converting visitors to qualified leads. Not only do they lead to slow load times, but they also create a poor user experience that reflects badly on your brand.