Yup it bogs the speed of the game down. I'm GMing Runelords now, and trying to keep up with all the options is maddening. Sometimes all I want is the players to hack, slash maim and kill and they want to have a philosophical discussion about the new alchemist potion they created. I have a rule, each player has to remember all the modifiers relevant to their PC. If the player forgets then that modifier doesn't apply. As GM I have to prepare what the NPCs are doing before the game so I expect the players to have done the same for the PCs for their attacks, spells or special abilities. About D&D Next fixing the speed issue I wouldn't hold my breath because publishers are always making new material to sell, but your group always has the option of not using it. Hope your group finds a resolution.