diff --git a/internal/ui/list/list.go b/internal/ui/list/list.go
index 32a8e661a5caaba2c8f36235eb554a2044ee14e0..f6c3fdc44501923f37a1943fa69d4432a6d4720c 100644
--- a/internal/ui/list/list.go
+++ b/internal/ui/list/list.go
@@ -84,6 +84,10 @@ func (l *List) AtBottom() bool {
 	// Calculate the height from offsetIdx to the end.
 	var totalHeight int
 	for idx := l.offsetIdx; idx < len(l.items); idx++ {
+		if totalHeight > l.height {
+			// No need to calculate further, we're already past the viewport height
+			return false
+		}
 		item := l.getItem(idx)
 		itemHeight := item.height
 		if l.gap > 0 && idx > l.offsetIdx {