The motion blur built into cycles is pretty awesome - it can handle wings that flap faster than the framerate, and to me that’[s the test of a good speedblur. And you can turn it off per object, so static objects don’t get speedblurred, slowing down your render…
…but…
…is there a way to turn off speedblur for multiple objects at once?
The tickbox to turn off speedblur is in the object settings if that helps.