Ah ok . Well understand that regardless of the hardware or protocol , 10 k files making 1 GB will always take longer than 1 file making 1 GB that ' s due to several layers of protocols and hardware . But you have mentioned that it ' s a transfer , not just a read is it transferring from your computer to your NAS ? If so , is your CPU heavily utilized at that time ? And do you have an SSD or HDD in your system ? SSDs generally work well with small files , but going from an HDD computer to an SSD NAS won ' t really help your performance . But one thing you can check is whether Write Cache is enabled may or may not give you a speed boost . This is in Storage ManagerHDDGeneral . Also , do you know what SMB version you ' re using ?