I've always used minis so I can't judge that really. But I do know that once you have the minis thing down (especially GM and the maps), and everyone knows the 4e rules as well as they knew their previous game rules, it will speed up. We use to get through 1-2 combats per ~4 hours of gaming. We can get through 3 now, so for us it seems to have gotten faster.If I were to place my finger on what is eating time up it is all of the tactical miniature elements. I move here, I miss causes him to shift etc. Which are interesting, however they do take time to implement.
Wizards don't seem to be optimized to take down solo opponents with at-wills (or in general) They are optimized to do good damage when taking into account AOEs. So while it took you 4 hits to drop one kobold, often if you had AOE you might drop two in the exact same time, or if you're lucky, 3Also, with the increased HP it feels like this endless attrition. My wizard (that died last session) needed at least four hits with his 1d6+4 damage at-will power to kill a 30 hp kobold.
I dont mind the extra hit points, but it also seems that damage has dramatically decreased from previous incarnations of the game. Damage needs to be increased for all characters except possibly the ranger who seems pretty solid. What has your experience been with this?
the problem is enemies have too many HP. Kobolds with 30 hp? Ridiculous. You used to kill one with a single swordstroke. Now all kobolds except minions are as tough as PCs?

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.