im afraid snap-shotting doesnt work like that, uve got it the wrong way round, snapshotting doesnt take into account attack speed im afraid, so all that massive 1mil dps is wasted in the snapshot, all that is included in a snapshot is
weapon average damage,
any ave dam boosts on rings/amulets,
elemental % boosts,
monster specific boost, like demon % increases,
%dam increases to elites,
Sweeping winds dam increases,
and life steal,
then add all your skills that boost ur DPS, like blazing wrath, faith in the light etc
add all gear with that combination of stats and snapshotting is at its max, ur char sheet DPS means nothing.
IAS and crit chance are not included in the snapshot,
IAS boosts are included in boosting how much blinding flash's 30% dam increase is worked out, so that weapons massvive IAS boost will boost blinding flash's effectiveness.