vzwick/jquery_lazyload — comment on commit ce46f83185e25a669e03d1e903909018ba7e9e12
File:  line 0
By vzwick:

There actually is, when using lazyload in conjunction with a large filterable list of items that can have their visibility state changed dynamically. In my case, we're talking about a filterable list of ~100 Case study previews. Skipping invisible items in the loop improves performance a whole lot.