Load Resources on Scroll
The timeline view is virtualized which means that the markup is being generated and maintained on the fly. Navigating both vertically and horizontally through scrolling fires the onVirtualLoading lifecycle event which can be used to load the data on scroll rather than load everything on initial page rendering.
This dramatically improves performance in case of a large event and resource count since not all data is loaded in memory from start.
Demo
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Try it on demo.mobiscroll.com