fix: set motion blur to disabled by default

src/components/video-editor/SettingsPanel.tsx

@@ -116,7 +116,7 @@ export function SettingsPanel({
   onShadowChange, 
   showBlur, 
   onBlurChange, 
-  motionBlurEnabled = true, 
+  motionBlurEnabled = false,
   onMotionBlurChange, 
   borderRadius = 0, 
   onBorderRadiusChange, 

src/components/video-editor/VideoEditor.tsx

@@ -45,7 +45,7 @@ export default function VideoEditor() {
   const [wallpaper, setWallpaper] = useState<string>(WALLPAPER_PATHS[0]);
   const [shadowIntensity, setShadowIntensity] = useState(0);
   const [showBlur, setShowBlur] = useState(false);
-  const [motionBlurEnabled, setMotionBlurEnabled] = useState(true);
+  const [motionBlurEnabled, setMotionBlurEnabled] = useState(false);
   const [borderRadius, setBorderRadius] = useState(0);
   const [padding, setPadding] = useState(50);
   const [cropRegion, setCropRegion] = useState<CropRegion>(DEFAULT_CROP_REGION);

src/components/video-editor/VideoPlayback.tsx

@@ -69,7 +69,7 @@ const VideoPlayback = forwardRef<VideoPlaybackRef, VideoPlaybackProps>(({
   showShadow,
   shadowIntensity = 0,
   showBlur,
-  motionBlurEnabled = true,
+  motionBlurEnabled = false,
   borderRadius = 0,
   padding = 50,
   cropRegion,

src/components/video-editor/videoPlayback/zoomTransform.ts

@@ -23,7 +23,7 @@ export function applyZoomTransform({
   focusY,
   motionIntensity,
   isPlaying,
-  motionBlurEnabled = true,
+  motionBlurEnabled = false,
 }: TransformParams) {
   if (
     stageSize.width <= 0 ||

src/lib/exporter/frameRenderer.ts

@@ -293,7 +293,7 @@ export class FrameRenderer {
       focusY: this.animationState.focusY,
       motionIntensity: maxMotionIntensity,
       isPlaying: true,
-      motionBlurEnabled: this.config.motionBlurEnabled ?? true,
+      motionBlurEnabled: this.config.motionBlurEnabled ?? false,
     });
 
     // Render the PixiJS stage to its canvas (video only, transparent background)