I have a SQL Server 2014 test box with SSRS installed. The site loads ok and reports are quick. When I try to go to Subscribe the page takes over a minute to load. From there if I pick a schedule it also takes minutes to load. This is a fresh box with nothing else installed. There's not antivirus installed.
The box has 2 x xeon @ 2.66 and 6GB of memory. I'm the only user on this box as it is just for testing.