Eloy,
First, there are no known performance issues using VISTA as a client (you cannot yet use VISTA as a GO-Global server).
Second, make sure the GGW version (3.2.xxxx) on the client matches the same version on the server.
Third, check your APS server log and make sure there are no obvious errors that indicate a problem. You may want to
increase the log output to get more diagnostics.
If these suggestions do not help to solve the problem, the best way to troubleshoot is via
your local reseller or
contact the GraphOn Support team.
-Erik