components/dashboard/Chart.tsx

@@ -201,7 +201,7 @@ export default function Chart({
 
   // ─── Data ──────────────────────────────────────────────────────────
 
-  const chartData = data.map((item) => {
+  const chartData = useMemo(() => data.map((item) => {
     let formattedDate: string
     if (interval === 'minute') {
       formattedDate = new Date(item.date).toLocaleTimeString('en-US', { hour: 'numeric', minute: '2-digit' })
@@ -223,7 +223,7 @@ export default function Chart({
       bounce_rate: item.bounce_rate,
       avg_duration: item.avg_duration,
     }
-  })
+  }), [data, interval])
 
   const annotationMarkers = useMemo(() => {
     if (!annotations?.length) return []
@@ -298,7 +298,7 @@ export default function Chart({
 
   // ─── Metrics with trends ──────────────────────────────────────────
 
-  const metricsWithTrends = METRIC_CONFIGS.map((m) => {
+  const metricsWithTrends = useMemo(() => METRIC_CONFIGS.map((m) => {
     const value = stats[m.key]
     const previousValue = prevStats?.[m.key]
     const change = previousValue != null && previousValue > 0
@@ -313,7 +313,7 @@ export default function Chart({
       change,
       isPositive,
     }
-  })
+  }), [stats, prevStats])
 
   const hasData = data.length > 0
   const hasAnyNonZero = hasData && chartData.some((d) => (d[metric] as number) > 0

components/dashboard/Globe.tsx

@@ -1,6 +1,6 @@
 'use client'
 
-import { useEffect, useRef } from 'react'
+import { useEffect, useMemo, useRef } from 'react'
 import createGlobe from 'cobe'
 import { useTheme } from '@ciphera-net/ui'
 import { countryCentroids } from '@/lib/country-centroids'
@@ -22,9 +22,10 @@ export default function Globe({ data, className }: GlobeProps) {
   // Update refs without causing effect re-runs
   isDarkRef.current = resolvedTheme === 'dark'
 
-  // Compute markers into ref
+  // Compute markers into ref (memoized to avoid recalculating on every render)
+  const markers = useMemo(() => {
     const max = data.length ? Math.max(...data.map((d) => d.pageviews)) : 0
-  markersRef.current = max > 0
+    return max > 0
       ? data
           .filter((d) => d.country && d.country !== 'Unknown' && countryCentroids[d.country])
           .map((d) => ({
@@ -32,6 +33,8 @@ export default function Globe({ data, className }: GlobeProps) {
             size: 0.03 + (d.pageviews / max) * 0.12,
           }))
       : []
+  }, [data])
+  markersRef.current = markers
 
   useEffect(() => {
     if (!canvasRef.current) return