Internet performance from View 5.3

Hi to all the users of the forum. I installed Vmware 5.3 on our corporate server (but at the moment I only license for 5.3) and I have created two test VDIs. At the moment I do not notice any anomalies, the system works fine. The only point is in navigation. When I navigate from VDI, performance is not particularly high. Can you give me some indication / advice? Thanks in advance