I am looking for some guidance on using the phpMailer class.

I am currently calling the php mail() function in a loop to take input from a contact form on my website and send it to 60 email recipients - its is running like a dog and i realise i need something better. I believe doing this is calling starting the whole process with the mail server for every single email request. Will phpMailer improve this performance? How easy is it to implement? Cheers.