Instead of rendering all report items in 4 big lists, we make use of
vue-virtual-scroll-list and render only few dozens at once. This
improves the performance in several metrics:
- Initial load time
- Memory Pressure
- CPU Load
- DOM node count
In an example with around 11k reported security vulnerabilities:
- Initial load time: 27s -> 4.1s
- Memory Pressure: ~750 MB -> ~270 MB
- CPU Load (time spent on executing JS/Rendering): 22s -> 2.5s
- DOM node count: 430k -> 7k up to 30k while scrolling
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