Hi~~ i have some Questions while i play dq

cap of crit chance = 60% is it right??

for example crit dmg 100%, total deals roughly 200%(normal 100% + extra crit dmg 100%) am i right??

deadly strike. it means crit dmg 200%. so the total dmg is 300%? or 2x critical hits = 400%??

what is the cap of deadly strike??

how about change crit chance to the deadly strike??

how about toxic and blight (affixes)? are they effective as their effects?? should i change those affixes?
thaaaaaaaank u