Cubase/Vienna Win 10 session on Windows 7?

Hello,

I installed Win10 on my x79 system today, but I get more latency than rock solid windows 7. I plan to buy a laptop soon which will have windows 10.

Has anyone experienced issues opening sessions on Win 7 that was originally created on 10, and visaversa? As long as outputs and plugins correspond, there should be no issue?

Thank you