To defer loading of the images as?

Guys, Hello))
There is a slider slick. The slick slider I insert pictures. As pictures are very large in size, the site starts to slow down. What to do in this situation? (Optimization of the images did).
Maybe there is code in jquery that delay loading the image or something?
Thank you all for the answer))
June 8th 19 at 17:28
1 answer
June 8th 19 at 17:30
Solution option Lazy Loading

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