Slider / Slideshow Alternatives? Modern Trends

On the current boisestate.edu website we use A LOT of sliders/slideshows. Sliders can add visual interest, and showcase important information about the university, your department or college. The downside is that the large images can cause slow page loads (especially problematic on mobile) and users may only see the first slide or first few if we're lucky. Let's use this thread to brainstorm ideas for alternatives to slideshows!