>A force-directed graph is a technique for visualizing networks where nodes are treated like physical objects with forces acting between them to create a stable arrangement. Attractive forces (like springs) pull connected nodes together, while repulsive forces (like electric charges) push all nodes apart, resulting in a layout where connected nodes are closer and unconnected nodes are more separated
I think it would be better and faster if the website calculated the positions of the nodes in the background (with a good enough limit of iterations), and then showed the result. Animating 4k nodes and 25k edges (15k by default) is a waste of CPU and is laggy even on my high-end CPU. But maybe the author was limited by the tools used.
https://observablehq.com/@d3/force-directed-graph/2