It should ensure protection for your Mac from any possible malware as well as quick downloading. If anyway you choose torrent trackers as the source of getting files from the web, you need a safe and trusted torrent client.
You can use torrents for more convenient and quicker downloads but torrent websites are not always secure and don’t take responsibility for the content posted on their web pages. Big files like movies may be damaged if there are Internet interruptions in the network and you have to start saving them all again.
If you download multimedia stuff from the Internet you know how time-consuming it can be.