I think there's good fast, and there's bad fast. Good fast creates a secondary texture over the constituent notes, i.e. sort of a tapestry that you can still follow. Jordan's solos often don't have that, and they become somewhat indiscernible, especially when he uses effect-laden sounds.
rumborak
I think the only thing you can reasonably accuse Jordan's solos of being, is occasionally unmemorable. I've never thought "I could hear what he was doing if he slowed down a bit." The solos I
remember are the most incredibly fast ones he does, as a general rule. Not JR, but bear with me - the first solo in Constant Motion is mindboggling. I love that bit. It locks over a tight groove and then absolutely floors you. Then Jordan does something on the continuum, and it's not as memorable. If Jordan continued from the same zone that Petrucci left off at, my eardrums would actually have fallen out. That's how incredible it'd be.
The forgettable ones are the slower ones. I want more notes and I want them
now! Or I'll throw beans all over the place.