Overuse of sliders/carousels

Problem Summary

Sliders and carousels are popular but performance-heavy. They require JavaScript for functionality, often load multiple images simultaneously, and frequently go unseen by most users.

Performance Impact

• Large initial payload: Multiple images in sliders
• JavaScript overhead: Complex JS for transitions
• Layout shifts: CLS from dynamic sizing
• Poor conversion: Carousels often have low engagement

How to Detect

1. PageSpeed Insights: Flags large images in sliders
2. 
   
3. Chrome DevTools: Count slider images
4. GTmetrix: Shows carousel-related issues

Solutions

1. Replace with Static Image

Use a single hero image instead of slider.

2. Lazy Load Slides

Only load images when slide is visible.

3>Use Lightweight Alternative

Swiper.js or flickity are more lightweight.

4>Limit Number of Slides

Show max 3-5 slides instead of 10+.

5. Use WebP Images

Smaller file format for slider images.

Further Reading

• Web.dev: Image Optimization