Virtualhere low speed

Good afternoon. I'm trying to set up Virtual here. On Ubuntu Server, I installed the VirtualHere server part with the command 
curl https://raw.githubusercontent.com/virtualhere/script/main/install_server | sudo sh 
I started the client on the Windows machine vhui64.exe he discovered the server himself and connected. 
In the configuration file /usr/local/etc/virtual hard/config.ini, I added the line Compression Limit=384 All flash drives that are inserted into the server are displayed in the client. 
I plug in a USB flash drive and try to transfer an .iso file larger than 2GB from it, while the speed is 355 kb/s. Can you tell me why the speed is so low? I tried different flash drives.

#2

Its your network latency.

#3

I connected the server directly and the PC with the client, the speed remained the same.

#4

OK not sure, What about removing virtualhere completely. Is it still slow?

#6

OK i dont think its virtualhere causing this i suspect its doing that regardless if you were to directly copy the file. Virtualhere will definately be slower than directly copying the file but not too much slower.

 That is why i wanted you to test it without virtualhere. Ive seen windows do that myself with large files as well sometimes without virtualhere at all.