improvement

src/App.jsx

@@ -330,11 +330,7 @@ const App = memo(() => {
     end: getSegApparentEnd(cutSegment),
   })), [cutSegments, getSegApparentEnd]);
 
-  const invalidSegUuids = apparentCutSegments
-    .filter(cutSegment => cutSegment.start >= cutSegment.end)
-    .map(cutSegment => cutSegment.uuid);
-
-  const haveInvalidSegs = invalidSegUuids.length > 0;
+  const haveInvalidSegs = useMemo(() => apparentCutSegments.filter(cutSegment => cutSegment.start >= cutSegment.end).length > 0, [apparentCutSegments]);
 
   const currentSegIndexSafe = Math.min(currentSegIndex, cutSegments.length - 1);
   const currentCutSeg = useMemo(() => cutSegments[currentSegIndexSafe], [currentSegIndexSafe, cutSegments]);