Send issue

[Myname124]

I send data to the remote server in the virtual machine and the physical machine, there will be a very strange problem, the data in the virtual machine send is very fast, but the recv data is relatively slow, and the physical machine send data is relatively slow, the slowest can reach 0.8s to send a data, the recv data is very fast, how can I solve this problem, I really need your help, friend.