What are the disadvantages of an empire compared to a republic?

One of the contrasts between the Roman Republic and the Roman Empire that tailed it was the previous republic's failure to deal with the enormous measure of region that it had procured. The Roman Empire, in any case, could control Rome's property and stayed more successful at smothering common agitation. By evacuating the arrangement of balanced governance that were set up amid the republic, the Roman Empire's occupant head could react rapidly and with more noteworthy compel to any apparent or unfurling danger.