Hi there

This is one of the questions that is hard to determine if its "normal" or a problem.  How does one define/explain fast or slow things are in text on a forum.

I can only suggest that you go into the retailer you have purchased or another retailer and see the speed of the EPG on a demo model.  If its the same, then its normal, if there is a noticable difference, try doing a factory reset of the TV (just in-case) and if not, get the TV exchanged.

Cheers