修改

src/components/card-preview/video-modal/index.tsx

@@ -280,8 +280,12 @@ export default defineComponent({
                   onClick={(e: any) => {
                     e.stopPropagation();
                     videoFroms.speedControl = !videoFroms.speedControl;
-                    clearTimeout(videoFroms.timer);
-                    videoFroms.showBar = true;
+                    if (videoFroms.speedControl) {
+                      clearTimeout(videoFroms.timer);
+                      videoFroms.showBar = true;
+                    } else {
+                      setModelOpen(true);
+                    }
                   }}>
                   <img src={iconSpeed} />
 

src/views/prepare-lessons/components/lesson-main/courseware/addCourseware.tsx

@@ -798,6 +798,10 @@ export default defineComponent({
                     // eslint-disable-next-line @typescript-eslint/ban-ts-comment
                     // @ts-ignore
                     group="description"
+                    scroll={true}
+                    scrollSensitivity={100}
+                    animation={200}
+                    forceAutoScrollFallback={true}
                     componentData={{
                       itemKey: 'id',
                       tag: 'div',