I have the same saw and the same problems with dust collection. The plastic shroud is useless - it clogs up too easily. I removed it and the dust collection is much better without it. Of course, a lot remains inside the cabinet and I clean it out when I have nothing better to do, which is almost never. Still, it's a great saw. For me, its greatest shortcoming is the location of the dust port on the rear. If you have an outfeed table and have to move your dust collection hose from machine to machine, connecting the hose to the table saw is a royal pain.
"A lot of people are afraid of heights. Not me, I'm afraid of widths."
-Steven Wright.