I have an application I have exported as a RemoteApp via a 2008 R2 (recently upgraded from 2008) terminal server.
Ever since the upgrade the excel export function of this app (which actually opens a copy of Excel) has been running much more slowly than would be expected than previously. My best estimate is at least a magnitude of order (possibly two) slower.
When I log in with a standard desktop session to this system (even using the TS gateway settings defined for the RemoteApp) things function normally.
Where should I look to debug this issue? There isn't anything unusual going on in the event logs.