@Morawk - I've been getting 5 seconds to complete Cruel Blast pretty consistently (timed it at several bosses including ones from Meathead's Deli, Mardi Growl, and Plasma Pyramid but not Sewers). Maybe those bosses are dodging one of those attacks or you're missing sporadically? I'll try to see if I can time 5 seconds somehow at a Sewer boss.

@Corpser - If we were a group of level 50s, we would be running slower even if GCD didn't exist.

@Vallist - I use a Samsung Galaxy S Fascinate w/ Android v2.1; everything is stock.