Genuine Office 2010 firebird-support Message Wi

Hello,Genuine Office 2010,
I have customers declaring that there's a 5-10 2nd lag when making an attempt to retrieve a
dataset in the server to a customer. The client OS varies.
If they're getting into info they start to sort and five - 10 seconds later the area
is populated together with the info. Then they can move on.
Has any one heard of this with Windows Server2008R2 in a very virtual natural environment?
They say it wasn't happeing when they were utilizing the Interbase version of your
database.
Many thanks beforehand.