diff --git a/src/pages/ContentScripts/features/repo-activity-racing-bar/RacingBar.tsx b/src/pages/ContentScripts/features/repo-activity-racing-bar/RacingBar.tsx
index b15eb3c8..6ee63a7e 100644
--- a/src/pages/ContentScripts/features/repo-activity-racing-bar/RacingBar.tsx
+++ b/src/pages/ContentScripts/features/repo-activity-racing-bar/RacingBar.tsx
@@ -3,7 +3,6 @@ import * as echarts from 'echarts';
 import type { EChartsOption, EChartsType } from 'echarts';
 
 interface RacingBarProps {
-  height: number;
   repoName: string;
   data: any;
 }
@@ -35,8 +34,8 @@ const option: EChartsOption = {
         return `${value} {avatar${value.replaceAll('-', '')}|}`;
       },
     },
-    animationDuration: 300,
-    animationDurationUpdate: 300,
+    animationDuration: 0,
+    animationDurationUpdate: 200,
   },
   series: [
     {
@@ -131,9 +130,41 @@ const play = (instance: EChartsType, data: any) => {
   playNext();
 };
 
-const RacingBar = ({ height, data }: RacingBarProps): JSX.Element => {
+/**
+ * Count the number of unique contributors in the data
+ */
+const countLongTermContributors = (data: any) => {
+  const contributors = new Map<string, number>();
+  Object.keys(data).forEach((month) => {
+    data[month].forEach((item: any[]) => {
+      if (contributors.has(item[0])) {
+        contributors.set(item[0], contributors.get(item[0])! + 1);
+      } else {
+        contributors.set(item[0], 0);
+      }
+    });
+  });
+  let count = 0;
+  contributors.forEach((value) => {
+    // only count contributors who have contributed more than 3 months
+    if (value >= 3) {
+      count++;
+    }
+  });
+  return count;
+};
+
+const RacingBar = ({ data }: RacingBarProps): JSX.Element => {
   const divEL = useRef<HTMLDivElement>(null);
 
+  let height = 300;
+  const longTermContributorsCount = countLongTermContributors(data);
+  if (longTermContributorsCount >= 20) {
+    // @ts-ignore
+    option.yAxis.max = 20;
+    height = 600;
+  }
+
   useEffect(() => {
     if (!divEL.current) return;
 
diff --git a/src/pages/ContentScripts/features/repo-activity-racing-bar/view.tsx b/src/pages/ContentScripts/features/repo-activity-racing-bar/view.tsx
index f4db746f..ce05b43f 100644
--- a/src/pages/ContentScripts/features/repo-activity-racing-bar/view.tsx
+++ b/src/pages/ContentScripts/features/repo-activity-racing-bar/view.tsx
@@ -51,7 +51,6 @@ const View = ({ currentRepo, repoActivityDetails }: Props): JSX.Element => {
               <RacingBar
                 key={replay}
                 repoName={currentRepo}
-                height={300}
                 data={repoActivityDetails}
               />
             </div>