Right now it is about 3 seconds for each scroll -- an eternity for my A.D.D. rattled brain. By the time a scroll refreshes, I'm off thinking about something else (like the fact that I just watched a 'wait' graphic spinning around).
Haven't tried it on a laptop, but scrolling takes less than a second on my desktop (wireless N to Comcast).
Sorry about the effect this is having on your iPhone remote app. I have it on my desktop, laptop, two iPhones, iPad, and iPod Touch. Strange, there was no guide data yesterday, worked fine last night, except I had to redo my locals, and then this morning your disclaimer pops up.