One thing to note - most UT (Unit Trust) fund sucks, and regardless of their performance, you're ought to pay their fund management fees anyway.

There's a few fund that stands out and pass the test of time (past 5-6 years performance) slightly outperforming EPF consistently, but exposing yourself to way higher risk (also let's not forget EPF stood the real test of time since 1952. 5 years is nothing to shout about).
Whether the risk is acceptable or not depends on your current appetite and investment horizon. If you're approaching retirement, forget about unit trust, simply not worth it.

If you're young, maybe, but then consider the downsides as well (fees, performance, etc.) and one thing for sure if you do - buy and forget. Don't even think of trading "ACTIVELY" with unit trust like a stock - because it's not. Any investment vehicles containing basket of stocks (UT, ETFs, etc.) are best treated passively.