diff --git a/DownKyi.Core/Storage/StorageCover.cs b/DownKyi.Core/Storage/StorageCover.cs
index 49e58c5..28b7dfb 100644
--- a/DownKyi.Core/Storage/StorageCover.cs
+++ b/DownKyi.Core/Storage/StorageCover.cs
@@ -30,7 +30,7 @@ namespace DownKyi.Core.Storage
         {
             string header = GetCover(avid, bvid, cid, url);
 
-            return GetGetCoverThumbnail(header, width, height);
+            return GetCoverThumbnail(header, width, height);
         }
 
         /// <summary>
@@ -40,10 +40,10 @@ namespace DownKyi.Core.Storage
         /// <param name="width"></param>
         /// <param name="height"></param>
         /// <returns></returns>
-        public BitmapImage GetGetCoverThumbnail(string cover, int width, int height)
+        public BitmapImage GetCoverThumbnail(string cover, int width, int height)
         {
-            var bitmap = new Bitmap(cover);
-            var thumbnail = bitmap.GetThumbnailImage(width, height, null, IntPtr.Zero);
+            Bitmap bitmap = new Bitmap(cover);
+            Image thumbnail = bitmap.GetThumbnailImage(width, height, null, IntPtr.Zero);
 
             return StorageUtils.BitmapToBitmapImage(new Bitmap(thumbnail));
         }
@@ -69,7 +69,7 @@ namespace DownKyi.Core.Storage
         public string GetCover(long avid, string bvid, long cid, string url)
         {
             CoverDb coverDb = new CoverDb();
-            var cover = coverDb.QueryByUrl(url);
+            Cover cover = coverDb.QueryByUrl(url);
 
             // 如果存在，直接返回
             // 如果不存在，则先下载
@@ -195,7 +195,7 @@ namespace DownKyi.Core.Storage
         /// <returns></returns>
         public bool IsLocal(CoverDb coverDb, string url)
         {
-            var cover = coverDb.QueryByUrl(url);
+            Cover cover = coverDb.QueryByUrl(url);
             return cover != null;
         }
 
@@ -207,7 +207,7 @@ namespace DownKyi.Core.Storage
         /// <returns></returns>
         public string LocalCover(CoverDb coverDb, string url)
         {
-            var cover = coverDb.QueryByUrl(url);
+            Cover cover = coverDb.QueryByUrl(url);
             return cover.Md5;
         }
 
diff --git a/DownKyi/Services/FavoritesService.cs b/DownKyi/Services/FavoritesService.cs
index 2363556..21021db 100644
--- a/DownKyi/Services/FavoritesService.cs
+++ b/DownKyi/Services/FavoritesService.cs
@@ -26,7 +26,7 @@ namespace DownKyi.Services
             // 查询、保存封面
             StorageCover storageCover = new StorageCover();
             string coverUrl = favoritesMetaInfo.Cover;
-            string cover = storageCover.GetCover(favoritesMetaInfo.Id, "Favorites", favoritesMetaInfo.Mid, coverUrl);
+            BitmapImage cover = storageCover.GetCoverThumbnail(favoritesMetaInfo.Id, "Favorites", favoritesMetaInfo.Mid, coverUrl, 300, 188);
 
             // 获取用户头像
             string upName;
@@ -49,7 +49,7 @@ namespace DownKyi.Services
             {
                 favorites.CoverUrl = coverUrl;
 
-                favorites.Cover = cover == null ? null : new BitmapImage(new Uri(cover));
+                favorites.Cover = cover;
                 favorites.Title = favoritesMetaInfo.Title;
 
                 DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1)); // 当地时区
@@ -98,7 +98,7 @@ namespace DownKyi.Services
                 // 查询、保存封面
                 StorageCover storageCover = new StorageCover();
                 string coverUrl = media.Cover;
-                string cover = storageCover.GetCover(media.Id, media.Bvid, -1, coverUrl);
+                BitmapImage cover = storageCover.GetCoverThumbnail(media.Id, media.Bvid, -1, coverUrl, 200, 125);
 
                 App.PropertyChangeAsync(new Action(() =>
                 {
@@ -107,7 +107,7 @@ namespace DownKyi.Services
                         Avid = media.Id,
                         Bvid = media.Bvid,
                         Order = order,
-                        Cover = cover == null ? null : new BitmapImage(new Uri(cover)),
+                        Cover = cover,
                         Title = media.Title,
                         PlayNumber = media.CntInfo != null ? Format.FormatNumber(media.CntInfo.Play) : "0",
                         DanmakuNumber = media.CntInfo != null ? Format.FormatNumber(media.CntInfo.Danmaku) : "0",
@@ -120,7 +120,7 @@ namespace DownKyi.Services
                     if (!result.ToList().Exists(t => t.Avid == newMedia.Avid))
                     {
                         result.Add(newMedia);
-                        Thread.Sleep(50);
+                        Thread.Sleep(10);
                     }
                 }));
             }