diff --git a/packages/common/nbstore/src/impls/idb/blob.ts b/packages/common/nbstore/src/impls/idb/blob.ts
index 9abb02c773..d06292951d 100644
--- a/packages/common/nbstore/src/impls/idb/blob.ts
+++ b/packages/common/nbstore/src/impls/idb/blob.ts
@@ -1,9 +1,5 @@
 import { share } from '../../connection';
-import {
-  type BlobRecord,
-  BlobStorageBase,
-  type ListedBlobRecord,
-} from '../../storage';
+import { type BlobRecord, BlobStorageBase } from '../../storage';
 import { IDBConnection, type IDBConnectionOptions } from './db';
 
 export class IndexedDBBlobStorage extends BlobStorageBase {
@@ -36,7 +32,9 @@ export class IndexedDBBlobStorage extends BlobStorageBase {
   }
 
   override async set(blob: BlobRecord) {
-    const trx = this.db.transaction(['blobs', 'blobData'], 'readwrite');
+    const trx = this.db.transaction(['blobs', 'blobData'], 'readwrite', {
+      durability: 'relaxed',
+    });
     await trx.objectStore('blobs').put({
       key: blob.key,
       mime: blob.mime,
@@ -52,11 +50,15 @@ export class IndexedDBBlobStorage extends BlobStorageBase {
 
   override async delete(key: string, permanently: boolean) {
     if (permanently) {
-      const trx = this.db.transaction(['blobs', 'blobData'], 'readwrite');
+      const trx = this.db.transaction(['blobs', 'blobData'], 'readwrite', {
+        durability: 'relaxed',
+      });
       await trx.objectStore('blobs').delete(key);
       await trx.objectStore('blobData').delete(key);
     } else {
-      const trx = this.db.transaction('blobs', 'readwrite');
+      const trx = this.db.transaction('blobs', 'readwrite', {
+        durability: 'relaxed',
+      });
       const blob = await trx.store.get(key);
       if (blob) {
         await trx.store.put({
@@ -68,29 +70,37 @@ export class IndexedDBBlobStorage extends BlobStorageBase {
   }
 
   override async release() {
-    const trx = this.db.transaction(['blobs', 'blobData'], 'readwrite');
+    const trx = this.db.transaction(['blobs', 'blobData'], 'readwrite', {
+      durability: 'relaxed',
+    });
 
-    const it = trx.objectStore('blobs').iterate();
+    const store = trx.objectStore('blobs');
+    const getAllRecords = store.getAllRecords?.bind(store);
+    const blobs =
+      typeof getAllRecords === 'function'
+        ? (await getAllRecords()).map(record => record.value)
+        : await store.getAll();
 
-    for await (const item of it) {
-      if (item.value.deletedAt) {
-        await item.delete();
-        await trx.objectStore('blobData').delete(item.value.key);
-      }
-    }
+    const deleted = blobs.filter(blob => blob.deletedAt);
+
+    await Promise.all(
+      deleted.map(blob =>
+        Promise.all([
+          store.delete(blob.key),
+          trx.objectStore('blobData').delete(blob.key),
+        ])
+      )
+    );
   }
 
   override async list() {
     const trx = this.db.transaction('blobs', 'readonly');
-    const it = trx.store.iterate();
+    const getAllRecords = trx.store.getAllRecords?.bind(trx.store);
+    const blobs =
+      typeof getAllRecords === 'function'
+        ? (await getAllRecords()).map(record => record.value)
+        : await trx.store.getAll();
 
-    const blobs: ListedBlobRecord[] = [];
-    for await (const item of it) {
-      if (!item.value.deletedAt) {
-        blobs.push(item.value);
-      }
-    }
-
-    return blobs;
+    return blobs.filter(blob => !blob.deletedAt);
   }
 }
diff --git a/packages/common/nbstore/src/impls/idb/db.ts b/packages/common/nbstore/src/impls/idb/db.ts
index 0326ab91e2..1e29f49d64 100644
--- a/packages/common/nbstore/src/impls/idb/db.ts
+++ b/packages/common/nbstore/src/impls/idb/db.ts
@@ -4,6 +4,38 @@ import { AutoReconnectConnection } from '../../connection';
 import type { SpaceType } from '../../utils/universal-id';
 import { type DocStorageSchema, migrator } from './schema';
 
+declare module 'idb' {
+  interface IDBPObjectStore {
+    getAllRecords?(
+      query?: IDBValidKey | IDBKeyRange | null,
+      count?: number | { direction?: IDBCursorDirection; count?: number }
+    ): Promise<IDBRecord[]>;
+  }
+  interface IDBPIndex {
+    getAllRecords?(
+      query?: IDBValidKey | IDBKeyRange | null,
+      count?: number | { direction?: IDBCursorDirection; count?: number }
+    ): Promise<IDBRecord[]>;
+  }
+  interface IDBObjectStore {
+    getAllRecords?(
+      query?: IDBValidKey | IDBKeyRange | null,
+      count?: number | { direction?: IDBCursorDirection; count?: number }
+    ): Promise<IDBRecord[]>;
+  }
+  interface IDBIndex {
+    getAllRecords?(
+      query?: IDBValidKey | IDBKeyRange | null,
+      count?: number | { direction?: IDBCursorDirection; count?: number }
+    ): Promise<IDBRecord[]>;
+  }
+  interface IDBRecord {
+    key: IDBValidKey;
+    primaryKey: IDBValidKey;
+    value: any;
+  }
+}
+
 export interface IDBConnectionOptions {
   flavour: string;
   type: SpaceType;
diff --git a/packages/common/nbstore/src/impls/idb/doc.ts b/packages/common/nbstore/src/impls/idb/doc.ts
index 46ca0bc4bc..c6977f6baa 100644
--- a/packages/common/nbstore/src/impls/idb/doc.ts
+++ b/packages/common/nbstore/src/impls/idb/doc.ts
@@ -37,7 +37,9 @@ export class IndexedDBDocStorage extends DocStorageBase<IDBConnectionOptions> {
 
     while (true) {
       try {
-        const trx = this.db.transaction(['updates', 'clocks'], 'readwrite');
+        const trx = this.db.transaction(['updates', 'clocks'], 'readwrite', {
+          durability: 'relaxed',
+        });
 
         await trx.objectStore('updates').add({
           ...update,
@@ -103,15 +105,15 @@ export class IndexedDBDocStorage extends DocStorageBase<IDBConnectionOptions> {
   override async deleteDoc(docId: string) {
     const trx = this.db.transaction(
       ['snapshots', 'updates', 'clocks'],
-      'readwrite'
+      'readwrite',
+      { durability: 'relaxed' }
     );
 
-    const idx = trx.objectStore('updates').index('docId');
-    const iter = idx.iterate(IDBKeyRange.only(docId));
+    const updates = trx.objectStore('updates');
+    const idx = updates.index('docId');
+    const keys = await idx.getAllKeys(IDBKeyRange.only(docId));
 
-    for await (const { value } of iter) {
-      await trx.objectStore('updates').delete([value.docId, value.createdAt]);
-    }
+    await Promise.all(keys.map(key => updates.delete(key)));
 
     await trx.objectStore('snapshots').delete(docId);
     await trx.objectStore('clocks').delete(docId);
@@ -120,6 +122,18 @@ export class IndexedDBDocStorage extends DocStorageBase<IDBConnectionOptions> {
   override async getDocTimestamps(after: Date = new Date(0)) {
     const trx = this.db.transaction('clocks', 'readonly');
 
+    const getAllRecords = trx.store.getAllRecords?.bind(trx.store);
+
+    if (typeof getAllRecords === 'function') {
+      const records = await getAllRecords();
+      return records.reduce((ret, cur) => {
+        if (cur.value.timestamp > after) {
+          ret[cur.value.docId] = cur.value.timestamp;
+        }
+        return ret;
+      }, {} as DocClocks);
+    }
+
     const clocks = await trx.store.getAll();
 
     return clocks.reduce((ret, cur) => {
@@ -157,7 +171,19 @@ export class IndexedDBDocStorage extends DocStorageBase<IDBConnectionOptions> {
 
   protected override async getDocUpdates(docId: string): Promise<DocRecord[]> {
     const trx = this.db.transaction('updates', 'readonly');
-    const updates = await trx.store.index('docId').getAll(docId);
+    const idx = trx.store.index('docId');
+    const getAllRecords = idx.getAllRecords?.bind(idx);
+
+    if (typeof getAllRecords === 'function') {
+      const records = await getAllRecords(IDBKeyRange.only(docId));
+      return records.map(record => ({
+        docId,
+        bin: record.value.bin,
+        timestamp: record.value.createdAt,
+      }));
+    }
+
+    const updates = await idx.getAll(docId);
 
     return updates.map(update => ({
       docId,
@@ -170,7 +196,9 @@ export class IndexedDBDocStorage extends DocStorageBase<IDBConnectionOptions> {
     docId: string,
     updates: DocRecord[]
   ): Promise<number> {
-    const trx = this.db.transaction('updates', 'readwrite');
+    const trx = this.db.transaction('updates', 'readwrite', {
+      durability: 'relaxed',
+    });
 
     await Promise.all(
       updates.map(update => trx.store.delete([docId, update.timestamp]))