The last bit is true enough, but the first part... whaaaat? Slow and clunky are the last words I'd use to describe the combat in Dragon's Dogma. If anything it's almost too fast-paced and flashy, as opposed to my preferred style of methodical combat in Demon's Souls.
The combat, maybe. I played as a mage and up until the point I stopped playing, I was pretty much just pointing at things and setting them on fire. I imagine the magic system opens up after a while. Everything else is annoying. Menu navigation. Quick travel, apparently, since I never got far enough to actually unlock it, but it sounds terrible. Even just walking around takes forever. I tried to do a sidequest and I ended up just slowly plodding across the map for an hour until I ran out of HP and had to walk back to the ugly hub city.
Playing that game made me feel like they expected me to just put up with shit like crappy inventory systems and annoying pawn chatter to get to the good stuff, but I never actually saw any good stuff so I quit.
Chimeras, Serpents Griffins and Dragons are generic?
... Yes? Is this a trick question? The whole setting was just boring, by-the-numbers Tolkien and D&D stuff. Dragons and gremlins and rogues and crap. The same stuff that appears in every generic fantasy game or movie or book or whatever. And the writing was terrible. Someone who worked on that script had a total boner for the word "aught."