You did not provide enough info. I've seen this problem once or twice but NOT lately on the latest firmware. What Escient device? Are you running the latest firmware? What is your network configuration? Are you DHCP to a router from the TSU9600? Which router?

Also, another quick question. On the Songs view, how many Songs do you have? Is it 9999 where you really have over 10000 songs on your Escient. I seem to recall that the remote tries to store all 9999 songs in memory and definitely slows down the remote. One primary symptom is a long delay when you jump to a page in the Escient Device from say, the Home page. Sound familiar?

Remembering back, the cause of the double-speed is actually the remote processing a backlog of play events from the Escient which might be being flushed on a track change.