The game folder was shared with my computer through smb, and the computer was connected to the nas through a Gigabit network cable. The game folder is located on a ssd in the pool, its a Samsung pm983a. When I tried to copy a video game to the game folder the transfer speed was very slow, sometimes down to 1mb/s, while I did not have this problem when I transferred the zip file. When I tried to copy the zip package to the game folder and then extract it from the folder, I encountered the same problem, and the extract speed was extremely slow. Anyone know how to solve this problem? All help is appreciated!

Copying many small files will always be slower than large ones, but you should see a nice boost if you set the share to exclusive mode, or use a disk share.

Thx! I changed it to exclusive mode, it's become better, however when it's copying many small files the speed is still around 10mb/s which is much more slower than the 100mb/s. And I found that when I tried to copy many small files from this folder to a local folder the speed was only 20mb/s. Is there any further way to improve the transmission speed. By the way, I don't think it's the hardware that limits the transfer speed, because the cpu usage is very low when I transfer and the theoretical performance of this SSD should be much higher than that.

As mentioned, many small files will always be slower, this is normal with any OS, it will be the same if you transfer from one Windows PC to another.