diff --git a/web/src/core-bridge/worker/account.ts b/web/src/core-bridge/worker/account.ts
index a8a97bb..7f53435 100644
--- a/web/src/core-bridge/worker/account.ts
+++ b/web/src/core-bridge/worker/account.ts
@@ -106,14 +106,17 @@ async function syncVault(): Promise<void> {
 
 async function activate(identity: { username: string; token: string }, key: CryptoKey, remote: VaultBody, remember = true, cachedPersonal?: PersonalProfile): Promise<AccountSession> {
   const profile = validateVault(await openJson(remote.vault, key));
-  const deviceSigning = await ensureDeviceSigning(identity.username, identity.token, profile.keys.signing);
+  // 设备签名密钥与个人资料互不依赖,同时请求,冷启动少等一个往返
+  const [deviceSigning, personal] = await Promise.all([
+    ensureDeviceSigning(identity.username, identity.token, profile.keys.signing),
+    loadPersonal(identity.token).catch((error: unknown) => {
+      if (!(error instanceof Error && error.message === '网络连接失败')) throw error;
+      return cachedPersonal;
+    }),
+  ]);
   clearResourceSessions(); setResourceScope(identity.username);
   const session: AccountSession = { ...identity, key, profile, revision: remote.revision, remember, controller: new AbortController(), dirty: false, deviceSigning };
-  try { session.personal = await loadPersonal(identity.token); }
-  catch (error) {
-    if (!(error instanceof Error && error.message === '网络连接失败')) throw error;
-    session.personal = cachedPersonal;
-  }
+  session.personal = personal;
   account = session; setAccountIdentity(identity, profile.keys.publicKey, session.personal);
   await applyProfile(mergeVault(profile, await listAllResources(), await listResourceDeletes()));
   setResourceChangeListener(scheduleSync);
@@ -135,7 +138,8 @@ export function restoreAccount(): Promise<void> {
     try {
       const session = await activate(saved, saved.key, remote, true, saved.personal);
       setAccountIdentity(session, session.profile.keys.publicKey, session.personal);
-      await syncVault().catch(() => {});
+      // 保险库已在 activate 里并入本机资源,完整同步(约 4 次往返)放到后台,不挡住打开页面
+      void syncVault().catch(() => {});
     } catch (error) { await logoutAccount(); throw error; }
   })().catch((error: unknown) => { restoration = undefined; throw error; });
   return restoration;
diff --git a/web/src/core-bridge/worker/channelTransport.ts b/web/src/core-bridge/worker/channelTransport.ts
index 04416f5..85e2a4d 100644
--- a/web/src/core-bridge/worker/channelTransport.ts
+++ b/web/src/core-bridge/worker/channelTransport.ts
@@ -21,8 +21,10 @@ export async function connectChannel(id: string): Promise<void> {
     if (resource.kind !== 'channel') throw new Error('资源类型不匹配');
     // Device sessions can be revoked independently of account membership; rejoin idempotently.
     const joinedAt = freshlyJoined.get(id); freshlyJoined.delete(id);
-    if (joinedAt === undefined || Date.now() - joinedAt > 60_000)
-      await apiFetch(`/channels/${id}/join`, { method: 'POST', headers: session.authHeaders(session.can('owner') ? 'owner' : 'read'), signal });
+    const join = () => apiFetch(`/channels/${id}/join`, { method: 'POST', headers: session.authHeaders(session.can('owner') ? 'owner' : 'read'), signal });
+    // 已保存的成员重连只是确认身份:与首屏数据同时发出,失败就由下面的重连循环再来一次。首次加入(needsJoin)仍然先 join
+    const joining = joinedAt !== undefined && Date.now() - joinedAt <= 60_000 ? undefined
+      : resource.needsJoin ? await join().then(() => undefined) : join().then(() => undefined);
     if (resource.needsJoin) {
       if (session.can('owner')) await channelMetadata(resource, session);
       resource.needsJoin = false;
@@ -49,7 +51,7 @@ export async function connectChannel(id: string): Promise<void> {
     while (!signal.aborted) {
       try {
         if (!initialized) {
-          [stream.cursor] = await Promise.all([syncChannel(resource, session, signal), channelMetadata(resource, session)]);
+          [stream.cursor] = await Promise.all([syncChannel(resource, session, signal), channelMetadata(resource, session), joining]);
           if (signal.aborted) break;
           await flushOutbox(resource, session);
           initialized = true;
diff --git a/web/src/store/channels.ts b/web/src/store/channels.ts
index 71218cb..50d0951 100644
--- a/web/src/store/channels.ts
+++ b/web/src/store/channels.ts
@@ -24,7 +24,7 @@ interface ChannelsState {
 const upsert = (list: ChannelInfo[], c: ChannelInfo) => [c, ...list.filter((x) => x.id !== c.id)];
 let hydration: Promise<void> | undefined;
 
-export const useChannels = create<ChannelsState>()((set) => ({
+export const useChannels = create<ChannelsState>()((set, get) => ({
   list: [],
   hydrated: false,
   pendingLink: null,
@@ -41,6 +41,8 @@ export const useChannels = create<ChannelsState>()((set) => ({
     return c;
   },
   hydrate: () => {
+    // 账号刷新已经列过一次,别再请求一遍
+    if (get().hydrated) return Promise.resolve();
     hydration ??= api.listSaved().then((list) => set({ list, hydrated: true }), () => set({ hydrated: true }));
     return hydration;
   },