Update app.py

app.py

@@ -241,10 +241,11 @@ const links = meta.edge_source_index.map((s, i) => {{
 
 // D3 force simulation parameters tuned for mobile friendliness
 const simulation = d3.forceSimulation(nodes)
-    .force("link", d3.forceLink(links).id(d => d.id).distance(80).strength(0.8))
-    .force("charge", d3.forceManyBody().strength(-150))
+    .force("link", d3.forceLink(links).id(d => d.id).distance(130).strength(0.4))
+    .force("charge", d3.forceManyBody().strength(-60))
     .force("collision", d3.forceCollide().radius(d => d.r * 0.6))
-    .force("center", d3.forceCenter(0,0));
+    .force("center", d3.forceCenter(0,0))
+    .velocityDecay(0.45);
 
 // Keep track of whether to keep sim running
 let stopSimulation = false;