Unfortunately, that's just how Sonic games are. The games of old feel fast, but they don't play fast. Try playing Sonic 1, sure Green Hill is nice and fast, but don't try to tell me once you get to Marble Zone that Sonic is fast. Sega made Sonic feel like a fast character, but in most games he's actually slow (or rather, normal). Yes, there are games in which Sonic is made to be very fast, like Sonic Advance series, in which you can pretty much spin dash yourself to the end of the level.they bring up "Sonic isn't fast" really?
I think Sonic was slower in Lost World than he is in Boom and IGN gave that game a 5.8, so yeah.