slow internet speed while writing to disk

Hey unraid friends,

 

so i am a bit amazed as i set up my gigabit internet connection.

I wondered why my internet is so slow while downloading to unraid and i found out that there is a very strange behavior while downloading from the internet to a disk.

 

so but 1 after the other: 

My downloads folder is set up like this and has cache drive enabled

 

 

if i download to /dev/null - it is very fast - gigabit 😄

 

if i download to the cache drive it is half so fast, but fast

 

if I download to a share /mnt/user/Downlaoads it is so slow like a LAN Party in the 90th

 

But if i upload a file from my network to that same share /usr/mnt/Downloads is has full speed

 

 

So here is my one and only question to save my day:

Why?

 

Thank you so much I appreciate your help a lot!

Cheers!