diff --git a/cmd/bee/cmd/cmd.go b/cmd/bee/cmd/cmd.go
index 2a6b85767a7..f3436b2a685 100644
--- a/cmd/bee/cmd/cmd.go
+++ b/cmd/bee/cmd/cmd.go
@@ -240,8 +240,8 @@ func (c *command) setAllFlags(cmd *cobra.Command) {
 	cmd.Flags().String(optionNameDataDir, filepath.Join(c.homeDir, ".bee"), "data directory")
 	cmd.Flags().Uint64(optionNameCacheCapacity, 1000000, fmt.Sprintf("cache capacity in chunks, multiply by %d to get approximate capacity in bytes", swarm.ChunkSize))
 	cmd.Flags().Uint64(optionNameDBOpenFilesLimit, 200, "number of open files allowed by database")
-	cmd.Flags().Uint64(optionNameDBBlockCacheCapacity, 4*1024*1024, "size of block cache of the database in bytes")
-	cmd.Flags().Uint64(optionNameDBWriteBufferSize, 1*1024*1024, "size of the database write buffer in bytes")
+	cmd.Flags().Uint64(optionNameDBBlockCacheCapacity, 16*1024*1024, "size of block cache of the database in bytes")
+	cmd.Flags().Uint64(optionNameDBWriteBufferSize, 16*1024*1024, "size of the database write buffer in bytes")
 	cmd.Flags().Bool(optionNameDBDisableSeeksCompaction, true, "disables db compactions triggered by seeks")
 	cmd.Flags().String(optionNamePassword, "", "password for decrypting keys")
 	cmd.Flags().String(optionNamePasswordFile, "", "path to a file that contains password for decrypting keys")