Dynamics Nav 2009 Native db on citrix


The company I work for has a Dynamics NAV 2009 R2 using the native db (200 GB) we access Navision from a remote desktop provided by a hosting center, the hosting center are planning to upgrade from Windows Server 2008 to Server 2016 and starting using citrix instead of remote desktop.

We have a test environment with a recent copy of our database and the performance is very bad I’m not sure if it's citrix or windows 2016 server which are causing the problems, a test report takes 4 times longer to run on the test client than in our production environment, if I install a client on the test Navision server the report runs very fast like 10 times faster than on the test client, but if I run a report which create an excel file the test client is faster than the test server.

The hosting center has tried to increase the resources on the server but this gives no increase in performance.

Any help would be appreciated