Despite embarking on their maiden European adventure, Oliver Glasner's side are adapting very quickly. Missing star figures like striker Jean-Philippe Mateta and wing-back Daniel Muñoz, the London club left Dublin with a commanding result that all but guarantees them a place in the Europa Conference League playoffs.
A further three points in their next fixture against Finnish KuPS ought to be sufficient to secure straight entry to the last 16, particularly following a previous stumble against Strasbourg.
This match offered a platform for several Palace's fringe talent to impress. Christantus Uche, making only his second start after arriving on loan from Getafe, opened the scoring with a well-taken finish. Striker Eddie Nketiah added a second, finding the net for the second consecutive succession.
The Shelbourne side that had concluded their league season proved outmatched against a mostly rotated Palace lineup. The visitors were further weakened by the reports that Mateta and Muñoz are out with knee problems.
Despite heavy rain in Dublin, Palace quickly took control. A slick move in the 11th minute, sparked by Daichi Kamada's clever pass, allowed Nketiah to lay on Uche for a straightforward tap-in.
Youngster Adam Wharton went close soon after, fizzing a long-range shot over the bar. Nketiah then claimed for a penalty after bursting into the area, but the official waved away the protests.
The formerArsenal striker did not have wait long to get his goal, prodding home from close range after Uche's shot had hit the post.
Shelbourne were hanging on for dear life. Defender Kameron Ledwidge was fortunate to escape a booking for a couple of agricultural tackles on Yeremy Pino, before Chris Richards rattled the crossbar with a powerful header from a corner.
The match was effectively over eight minutes from half-time. Yeremy Pino weaved past some weak challenges before calmly slotting a shot past keeper Wessel Speel to make it 3-0.
Following the break, coach Oliver Glasner seized the opportunity to rest several individuals like Kamada and Wharton. Substitute Romain Esse almost scoring with his very first touch, only to see his effort blocked.
The youngster was incredibly unlucky later on, seeing one attempt strike off each posts before being clasped on the line. Uche also blazed a glaring chance, showing there is still room for development in his game.
The only worry for Palace was a late injury to Justin Devenny, who limped off. This allowed 17-year-old striker Benji Casey to earn his first-team debut, rounding off an otherwise positive night for the traveling side.
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