I was taken by surprise when suddenly my humax menus all vanished and were replaced with BT stuff a while ago. However - most (but not all - eg hide channels) of the functionality seems to still be there so I stuck with it.
But now, navigating round the menus/options has got slow to the point of being unusable. When I select a recording it can take up to a minute for it to start playing and usually there is no sound. The only way I can get sound is by pausing and using the skip control over and over till it comes on.
When I stop a program there is, again, over a minute's wait while the menu sorts itself out and I can actually navigate it again.