Goals from Stephen Grant, Marc Kenny, Derek Tracy and Tony Cousins gave Damien Richardson's in-form side a convincing win over the Wicklow side.
Shelbourne continued their return to form with a 3-1 win over newly promoted Monaghan United at Tolka Park.
Fresh from their thrilling 6-4 hammering of Bohemians, Dermot Keely's side now move into second position in the league thanks to a brace from Stephen Geoghegan and a Dessie Baker strike.
St Patrick's Athletic hammered struggling Galway United 4-0 at Terryland Park. First half goals from Mbabazi, Darragh Maguire, Colm Foley, and Gavin Doyle mean United remain at the foot of the league table with just one win all season.
Meanwhile in first division action, Waterford and Athlone Town played out a scoreless draw at the RTC.