diff --git a/packages/frontend/component/src/ui/loading/loading.tsx b/packages/frontend/component/src/ui/loading/loading.tsx
index ceba9bd1e0..4e46fede1d 100644
--- a/packages/frontend/component/src/ui/loading/loading.tsx
+++ b/packages/frontend/component/src/ui/loading/loading.tsx
@@ -1,7 +1,8 @@
 import { assignInlineVars } from '@vanilla-extract/dynamic';
+import clsx from 'clsx';
 
 import { withUnit } from '../../utils/with-unit';
-import { loading, speedVar } from './styles.css';
+import { loading, rotateAnimation, speedVar } from './styles.css';
 
 export interface LoadingProps {
   size?: number | string;
@@ -18,7 +19,7 @@ export const Loading = ({
   const sizeWithUnit = size ? withUnit(size, 'px') : '16px';
   return (
     <svg
-      className={loading}
+      className={clsx(loading, speed !== 0 && rotateAnimation)}
       width={sizeWithUnit}
       height={sizeWithUnit}
       viewBox="0 0 24 24"
diff --git a/packages/frontend/component/src/ui/loading/styles.css.ts b/packages/frontend/component/src/ui/loading/styles.css.ts
index 56551790c8..da4cd10c59 100644
--- a/packages/frontend/component/src/ui/loading/styles.css.ts
+++ b/packages/frontend/component/src/ui/loading/styles.css.ts
@@ -12,10 +12,12 @@ const rotate = keyframes({
   },
 });
 export const loading = style({
+  transform: 'rotate(-90deg)',
+});
+
+export const rotateAnimation = style({
   vars: {
     [speedVar]: '1.5s',
   },
-  textRendering: 'optimizeLegibility',
-  transform: 'rotate(-90deg)',
   animation: `${rotate} ${speedVar} infinite linear`,
 });
diff --git a/packages/frontend/core/src/components/pure/ai-island/index.tsx b/packages/frontend/core/src/components/pure/ai-island/index.tsx
index f4859c6347..5c67251777 100644
--- a/packages/frontend/core/src/components/pure/ai-island/index.tsx
+++ b/packages/frontend/core/src/components/pure/ai-island/index.tsx
@@ -1,25 +1,11 @@
 import { WorkbenchService } from '@affine/core/modules/workbench';
-import {
-  GlobalStateService,
-  LiveData,
-  useLiveData,
-  useService,
-} from '@toeverything/infra';
+import { useLiveData, useService } from '@toeverything/infra';
 import clsx from 'clsx';
 import { useEffect, useState } from 'react';
 
 import { ToolContainer } from '../../workspace';
 import { AIIcon } from './icons';
-import {
-  aiIslandAnimationBg,
-  aiIslandBtn,
-  aiIslandWrapper,
-  gradient,
-  toolStyle,
-} from './styles.css';
-
-const RIGHT_SIDEBAR_AI_HAS_EVER_OPENED_KEY =
-  'app:settings:rightsidebar:ai:has-ever-opened';
+import { aiIslandBtn, aiIslandWrapper, toolStyle } from './styles.css';
 
 export const AIIsland = () => {
   // to make sure ai island is hidden first and animate in
@@ -32,19 +18,6 @@ export const AIIsland = () => {
   );
   const activeTab = useLiveData(activeView.activeSidebarTab$);
   const sidebarOpen = useLiveData(workbench.sidebarOpen$);
-  const globalState = useService(GlobalStateService).globalState;
-  const aiChatHasEverOpened = useLiveData(
-    LiveData.from(
-      globalState.watch<boolean>(RIGHT_SIDEBAR_AI_HAS_EVER_OPENED_KEY),
-      false
-    )
-  );
-
-  useEffect(() => {
-    if (sidebarOpen && activeTab?.id === 'chat') {
-      globalState.set(RIGHT_SIDEBAR_AI_HAS_EVER_OPENED_KEY, true);
-    }
-  }, [activeTab, globalState, sidebarOpen]);
 
   useEffect(() => {
     setHide((sidebarOpen && activeTab?.id === 'chat') || !haveChatTab);
@@ -52,18 +25,7 @@ export const AIIsland = () => {
 
   return (
     <ToolContainer className={clsx(toolStyle, { hide })}>
-      <div
-        className={aiIslandWrapper}
-        data-hide={hide}
-        data-animation={!aiChatHasEverOpened}
-      >
-        {aiChatHasEverOpened ? null : (
-          <div className={aiIslandAnimationBg}>
-            <div className={gradient} />
-            <div className={gradient} />
-            <div className={gradient} />
-          </div>
-        )}
+      <div className={aiIslandWrapper} data-hide={hide}>
         <button
           className={aiIslandBtn}
           data-testid="ai-island"
diff --git a/packages/frontend/core/src/components/pure/ai-island/styles.css.ts b/packages/frontend/core/src/components/pure/ai-island/styles.css.ts
index 54bc36949b..c866c61b65 100644
--- a/packages/frontend/core/src/components/pure/ai-island/styles.css.ts
+++ b/packages/frontend/core/src/components/pure/ai-island/styles.css.ts
@@ -1,5 +1,5 @@
 import { cssVar } from '@toeverything/theme';
-import { createVar, keyframes, style } from '@vanilla-extract/css';
+import { style } from '@vanilla-extract/css';
 
 export const toolStyle = style({
   selectors: {
@@ -49,84 +49,3 @@ export const aiIslandBtn = style({
     },
   },
 });
-
-// -------- animation --------
-export const borderAngle1 = createVar('border-angle-1');
-export const borderAngle2 = createVar('border-angle-2');
-export const borderAngle3 = createVar('border-angle-3');
-const brightBlue = createVar('bright-blue');
-const brightGreen = createVar('bright-green');
-const brightRed = createVar('bright-red');
-const borderWidth = createVar('border-width');
-
-const rotateBg = keyframes({
-  to: { transform: 'rotate(360deg)' },
-});
-
-export const aiIslandAnimationBg = style({
-  width: 'inherit',
-  height: 'inherit',
-  top: 0,
-  left: 0,
-  position: 'absolute',
-  borderRadius: '50%',
-  overflow: 'hidden',
-
-  vars: {
-    [borderAngle1]: '0deg',
-    [borderAngle2]: '90deg',
-    [borderAngle3]: '180deg',
-    [brightBlue]: 'rgb(0, 100, 255)',
-    [brightGreen]: '#1E96EB',
-    [brightRed]: 'rgb(0, 200, 255)',
-    [borderWidth]: '1.5px',
-  },
-  backgroundColor: 'transparent',
-
-  selectors: {
-    [`${aiIslandWrapper}[data-animation="true"] &`]: {
-      width: `calc(100% + 2 * ${borderWidth})`,
-      height: `calc(100% + 2 * ${borderWidth})`,
-      top: `calc(-1 * ${borderWidth})`,
-      left: `calc(-1 * ${borderWidth})`,
-    },
-  },
-});
-
-export const gradient = style({
-  position: 'absolute',
-  width: '100%',
-  height: '100%',
-  borderRadius: 'inherit',
-  animationName: rotateBg,
-  animationIterationCount: 'infinite',
-  animationTimingFunction: 'linear',
-  pointerEvents: 'none',
-  willChange: 'transform',
-  selectors: {
-    [`&:nth-of-type(1)`]: {
-      animationDuration: '3s',
-      backgroundImage: `conic-gradient(from ${borderAngle1} at 50% 50%, 
-        transparent, ${brightBlue} 10%, 
-        transparent 30%, 
-        transparent
-      )`,
-    },
-    [`&:nth-of-type(2)`]: {
-      animationDuration: '8s',
-      backgroundImage: `conic-gradient(from ${borderAngle2} at 50% 50%,
-        transparent, ${brightGreen} 10%,
-        transparent 60%,
-        transparent
-      )`,
-    },
-    [`&:nth-of-type(3)`]: {
-      animationDuration: '13s',
-      backgroundImage: `conic-gradient(from ${borderAngle3} at 50% 50%,
-        transparent, ${brightRed} 10%,
-        transparent 50%,
-        transparent
-      )`,
-    },
-  },
-});
diff --git a/packages/frontend/core/src/components/workspace-selector/workspace-card/index.tsx b/packages/frontend/core/src/components/workspace-selector/workspace-card/index.tsx
index 3b0ca8246a..36ee095c16 100644
--- a/packages/frontend/core/src/components/workspace-selector/workspace-card/index.tsx
+++ b/packages/frontend/core/src/components/workspace-selector/workspace-card/index.tsx
@@ -42,7 +42,7 @@ const CloudWorkspaceStatus = () => {
 const SyncingWorkspaceStatus = ({ progress }: { progress?: number }) => {
   return (
     <>
-      <Loading progress={progress} speed={progress ? 0 : undefined} />
+      <Loading progress={progress} speed={0} />
       Syncing...
     </>
   );
diff --git a/packages/frontend/core/src/components/workspace-selector/workspace-card/styles.css.ts b/packages/frontend/core/src/components/workspace-selector/workspace-card/styles.css.ts
index 76baba9b47..e10927868a 100644
--- a/packages/frontend/core/src/components/workspace-selector/workspace-card/styles.css.ts
+++ b/packages/frontend/core/src/components/workspace-selector/workspace-card/styles.css.ts
@@ -107,6 +107,7 @@ globalStyle(`.${workspaceActiveStatus} svg`, {
   width: 16,
   height: 16,
   color: cssVar('iconSecondary'),
+  display: 'block',
 });
 
 export const workspaceInfoTooltip = style({