you can disable the entire voting in option in settings > general and uncheck “Activate voting”.The user is prompted to login to avoid spam and validate every count as valid vote.
There is not as admin view or screen for the votes, but as user votes the count will increase in the fron-end, once a user has voted the link will display a different color and the user can’t no longer vote, but they can see how many people have voted in a particular image.