I'm not claiming to have a solution to this, but are you possibly using a Logitech Harmony remote with the BDP-93? For the first several months that I owned my BDP-93, the menus felt painfully sluggish. I forget why I eventually used the factory remote for some small task, but when I did, I realized that the menus responded lightning fast. Repeated tests more or less confirmed that my Harmony One was the root of the sluggish response in my case. I've tried adjusting various timing settings with the Harmony, but I've still never been able to approach the response that I get with the factory remote. Despite this, I still control the BDP-93 with my Harmony.