diff --git a/web/src/pages/app/modules/preview.ts b/web/src/pages/app/modules/preview.ts
index 525a538..d20ac7a 100644
--- a/web/src/pages/app/modules/preview.ts
+++ b/web/src/pages/app/modules/preview.ts
@@ -868,34 +868,7 @@ function resetPreviewPlaybackScene() {
 }
 
 function buildPreviewFrameTimes(frames: P_OPERATION["OPERATION"]["frames"]) {
-  const parsedTimes = frames.map((frame) => Number(frame.time));
-  if (shouldTreatFrameTimeAsInterval(parsedTimes)) {
-    let accumulatedTime = 0;
-    return parsedTimes.map((time, index) => {
-      const intervalMs = Number.isFinite(time)
-        ? Math.max(0, time * SECOND_MS)
-        : DEFAULT_PREVIEW_FRAME_INTERVAL_MS;
-      accumulatedTime += index === 0 ? 0 : intervalMs;
-      return accumulatedTime;
-    });
-  }
-
-  let previousTime = 0;
-  return parsedTimes.map((parsed, index) => {
-    const timeMs = Number.isFinite(parsed) ? Math.max(0, parsed * SECOND_MS) : index * DEFAULT_PREVIEW_FRAME_INTERVAL_MS;
-    previousTime = index === 0 ? timeMs : Math.max(previousTime + 1, timeMs);
-    return previousTime;
-  });
-}
-
-function shouldTreatFrameTimeAsInterval(times: number[]) {
-  const validTimes = times.filter(Number.isFinite);
-  if (validTimes.length < 2) return false;
-  let repeatedCount = 0;
-  for (let index = 1; index < validTimes.length; index += 1) {
-    if (Math.abs(validTimes[index] - validTimes[index - 1]) < 0.000001) repeatedCount += 1;
-  }
-  return repeatedCount >= Math.max(1, Math.floor(validTimes.length * 0.6));
+  return frames.map((_, index) => index * DEFAULT_PREVIEW_FRAME_INTERVAL_MS);
 }
 
 function resolvePreviewFrameIndex(currentTimeMs: number, frameTimesMs: number[]) {