Even though entering their maiden continental adventure, Oliver Glasner's side are learning at a rapid pace. Without star players like forward Jean-Philippe Mateta and wing-back Daniel Muñoz, the London club departed Dublin with a comfortable result that all but guarantees them a spot in the Conference League playoffs.
Another three points in their upcoming fixture against Finnish KuPS should be sufficient to secure direct passage to the knockout stages, especially after a prior stumble against Strasbourg.
This occasion provided a platform for several Palace's lesser-used talent to shine. Christantus Uche, in only his second start after joining on loan from Getafe, opened the scoring with a well-taken finish. Striker Eddie Nketiah contributed a second, finding the net for the second game in match.
A Shelbourne side that had concluded their domestic season were outmatched against a largely rotated Palace lineup. The Londoners were further weakened by the reports that Mateta and Muñoz are sidelined with leg problems.
Despite torrential rain in Dublin, Palace quickly established dominance. A slick passing sequence in the 11th minute, sparked by Daichi Kamada's incisive pass, allowed Nketiah to set up Uche for a straightforward tap-in.
Midfielder Adam Wharton went close minutes later, fizzing a powerful shot over the bar. Nketiah subsequently appealed for a penalty after racing into the box, but the referee dismissed the appeals.
The formerArsenal man did not have wait long to find his goal, prodding home from a yard out after Uche's effort had hit the post.
The home side were clinging on desperately. Full-back Kameron Ledwidge was fortunate to escape a booking for two robust challenges on Yeremy Pino, before Chris Richards rattled the woodwork with a powerful header from a corner.
The match was effectively over eight minutes before half-time. Yeremy Pino weaved past a series of comically weak challenges before calmly slotting a shot past goalkeeper Wessel Speel to extend the lead to 3-0.
After the break, coach Oliver Glasner seized the opportunity to rest several individuals like Kamada and Wharton. Substitute Romain Esse almost scoring with his first touch, only to see his effort blocked.
The youngster was desperately unlucky later on, seeing one shot crash off both posts before being gathered on the line. Uche then blazed a glaring chance, showing there is still scope for development in his game.
The only worry for Palace was a late injury to Justin Devenny, who was forced off. This paved the way for 17-year-old striker Benji Casey to make his first-team debut, capping an otherwise positive evening for the traveling side.
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