[Users] Configuring oVirt 3.3.4-1.el

Hello all, I 'm having problems when I want to import a new virtual machine or create a new one from a template. Every virtual machine I have running is unresponsive when I try to create a new virtual machine with the import or from template. I'm running a oVirt engine on a Centos 6.5 minimal installation which also function as a NFS server. It has 6 NIC's available, 32 GB of RAM and 2 Quad cores. My node has 2 NIC's, 64 GB of RAM and 2 Six cores. How should I configure my network for optimal performance or how can I check why my virtual machines are non responsive. I don't see much CPU activity or disk access at that moment. Kind regards.