Irish Life recently expanded their fund range on Standard PRSAs to fifteen funds. While they cannot give you advice as to which one is suited to you, they should be able to give you the list as that's just factual information. I can't find it on their website to post a link.
As a general point, if you are seeking a fund that will give you a better return than cash, you must accept that there will be a higher level of risk, i.e. it MAY give you a better return than cash, but might drop in value.
Have you put the query to whoever sold you the PRSA?