Maul could
Not really. Maul initially only saw Sidious as a blur, and was desperately parrying and dodging to survive. Then, when Palpatine became serious, Maul couldn't even count how many directions he appeared to be coming from and was disarmed within seconds.
Sidious raised his saber and flew at Maul, who parried desperately, his mechanical legs whirring as he sought to counter his former Master's blows. Sidious's sabers were but a blur, a whirling cage of deadly plasma. Maul skittered away from one blow, then reversed his movement to avoid another, and then there were too many to count, and then there were even more than that. Maul's saber spun out of his hand, bouncing away across the floor.
As for what you said about Exar Kun being advantageous over Maul because of Force Enhanced speed, precognition, and strength, that *would* be relevant if Maul didn't have far better feats in enhancement of all of the above areas, not to mention skill.
Four Exar Kun's wouldn't be able to handle a far greater incarnation of Palpatine.