diff --git a/zboxcore/sdk/chunked_upload_process_js.go b/zboxcore/sdk/chunked_upload_process_js.go
index 782400775..2f0941773 100644
--- a/zboxcore/sdk/chunked_upload_process_js.go
+++ b/zboxcore/sdk/chunked_upload_process_js.go
@@ -57,6 +57,7 @@ type ChunkedUploadFormInfo struct {
 	StorageVersion    int
 	EncryptionVersion int
 	PrivateSigningKey ed25519.PrivateKey
+	bbuf              *bytebufferpool.ByteBuffer
 }
 
 // createUploadProgress create a new UploadProgress
@@ -463,6 +464,7 @@ func ProcessEventData(data safejs.Value) {
 	formBuilder := CreateChunkedUploadFormBuilder(formInfo.StorageVersion, formInfo.EncryptionVersion, formInfo.PrivateSigningKey)
 	uploadData, err := formBuilder.Build(fileMeta, wp.hasher, formInfo.ConnectionID, blobberID, formInfo.ChunkSize, formInfo.ChunkStartIndex, formInfo.ChunkEndIndex, formInfo.IsFinal, formInfo.EncryptedKey, formInfo.EncryptedKeyPoint,
 		fileShards, thumbnailChunkData, formInfo.ShardSize)
+	uploadPool.Put(formInfo.bbuf)
 	if err != nil {
 		selfPostMessage(false, false, err.Error(), remotePath, formInfo.ChunkEndIndex, nil)
 		return
@@ -599,9 +601,15 @@ func parseEventData(data safejs.Value) (*FileMeta, *ChunkedUploadFormInfo, [][]b
 	if err != nil {
 		return nil, nil, nil, nil, err
 	}
-	buf := make([]byte, fileShardLen)
-	safejs.CopyBytesToGo(buf, fileShardUint8)
-	fileShards := splitData(buf, int(chunkSize))
+	bbuf := uploadPool.Get()
+	if cap(bbuf.B) < fileShardLen {
+		bbuf.B = make([]byte, fileShardLen)
+	} else {
+		bbuf.B = bbuf.B[:fileShardLen]
+	}
+	safejs.CopyBytesToGo(bbuf.B, fileShardUint8)
+	fileShards := splitData(bbuf.B, int(chunkSize))
+	formInfo.bbuf = bbuf
 	fileShardUint8.Set("buffer", js.Null())
 	formInfoUint8.Set("buffer", js.Null())
 	fileMetaUint8.Set("buffer", js.Null())
diff --git a/zboxcore/sdk/listworker.go b/zboxcore/sdk/listworker.go
index d8944557d..590c4c7fe 100644
--- a/zboxcore/sdk/listworker.go
+++ b/zboxcore/sdk/listworker.go
@@ -174,6 +174,9 @@ func (req *ListRequest) getlistFromBlobbers() ([]*listResponse, error) {
 	for i := 0; i < numList; i++ {
 		go req.getListInfoFromBlobber(req.blobbers[i], i, rspCh)
 	}
+	if req.storageVersion == StorageV2 {
+		req.listOnly = true
+	}
 	listInfos := make([]*listResponse, numList)
 	consensusMap := make(map[string][]*blockchain.StorageNode)
 	var consensusHash string
@@ -241,7 +244,7 @@ func (req *ListRequest) GetListFromBlobbers() (*ListResult, error) {
 	}
 	selected := make(map[string]*ListResult)
 	childResultMap := make(map[string]*ListResult)
-	if !req.forRepair {
+	if !req.forRepair && req.storageVersion == 0 {
 		req.consensusThresh = 1
 	}
 	for i := 0; i < len(lR); i++ {