I got 9.1 on my 240 S2 and right after it first installed the thing was flying. I mean it was nearly as fast as my S3. After about a day the performance dropped back to about 8.3 speeds and now the thing is really sluggish. It takes at least 4 seconds for pretty much any action to complete. The only exception is trick play which is pretty much instantaneous. Everything else, such as navigating menus and even getting the program listings from TiVo Desktop is noticeably slower than it was in 8.3. There is some kind of cache since doing an action and then doing it again is a bit faster (1 or 2 seconds instead of 4 or 5 seconds), but it's still slow. Anyone else notice a performance hit on their S2?