When it comes to curation rewards...it doesn't directly look at how frequent your votes are. However, this voting does effect your voting power which effects the max amount of curation you can get. The only other factors are if you voted before a post was 30 minutes old as well as the order of voting (you get more when you've voted before the bigger/higher $ votes go in.)
RE: 💁 Answering Common Questions about Voting and Curation 💡