Windows teaming and network latency of VM

Hi ,

we have configure windows teaming on the hyper-v host 2012 R2 , and creating virtual swich on the teaming interface

when i assign a  Virtual machine to  that switch , i get latency for browsing the websites inside the VM and  time out error

if i assign the virtual switch to non team adapter  , there is no error and no latency

Do you know why the window teaming do latency ?

Ramy