From 2464e7661c0b61f1a882b3b2817278c91d084edf Mon Sep 17 00:00:00 2001
From: nicwands <wands.nic@gmail.com>
Date: Thu, 25 Jun 2026 13:02:03 -0400
Subject: [PATCH] fix scroll update problem

---
 src/composables/useInfiniteScroll.js | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/src/composables/useInfiniteScroll.js b/src/composables/useInfiniteScroll.js
index 018ca24..9e92f3d 100644
--- a/src/composables/useInfiniteScroll.js
+++ b/src/composables/useInfiniteScroll.js
@@ -179,19 +179,18 @@ export const useInfiniteScroll = (options = {}) => {
             scrollY: state.scrollY + deltaY,
             duration: 1,
             ease: 'expo.out',
+            onUpdate: async () => {
+                const newViewportIndex = calculateVisibleViewport(state.scrollY)
+                if (newViewportIndex !== state.currentViewportIndex) {
+                    state.currentViewportIndex = newViewportIndex
+                    const rangeStart = newViewportIndex - bufferSize
+                    const rangeEnd = newViewportIndex + bufferSize
+
+                    await loadViewportsInRange(rangeStart, rangeEnd)
+                    cleanupViewports()
+                }
+            },
         })
-
-        const newViewportIndex = calculateVisibleViewport(state.scrollY)
-
-        if (newViewportIndex !== state.currentViewportIndex) {
-            state.currentViewportIndex = newViewportIndex
-
-            const rangeStart = newViewportIndex - bufferSize
-            const rangeEnd = newViewportIndex + bufferSize
-
-            await loadViewportsInRange(rangeStart, rangeEnd)
-            cleanupViewports()
-        }
     }
 
     // Attach the virtual-scroll listener once Lenis is ready