Hey guys so after nearly 2 months trying to figure out this slow performance issue with network transfer on pretty much every operating system other than windows and Synology DSM, I finally figured out the issue, The best bit is it literally takes like one second to fix. All you got to do is go in to the BIOS and change one setting, Change “use drive write cache” to “enable” and then reboot your system and your done.

I’m glad i finally figured out the issue as this has been bugging me for weeks if not months.