Even though entering their maiden continental campaign, Oliver Glasner's side are adapting at a rapid pace. Missing key players like forward Jean-Philippe Mateta and defender Daniel Muñoz, the London club left Dublin with a commanding win that all but secures them a place in the Europa Conference League playoffs.
Another victory in their upcoming match against Finnish KuPS should be sufficient to seal direct passage to the knockout stages, particularly following a prior setback against Strasbourg.
This occasion provided a chance for several Palace's fringe talent to shine. Christantus Uche, making only his second beginning after arriving on loan from Getafe, notched the account with a clinical goal. Striker Eddie Nketiah added a another, scoring for the second consecutive match.
A Shelbourne team that had concluded their domestic season proved no match against a mostly rotated Palace lineup. The Londoners were further depleted by the reports that Mateta and Muñoz are sidelined with leg injuries.
Despite heavy rain in Dublin, Palace rapidly established dominance. A slick move in the 11th minute, initiated by Daichi Kamada's incisive pass, allowed Nketiah to set up Uche for a straightforward tap-in.
Midfielder Adam Wharton went close minutes later, driving a long-range shot over the bar. Nketiah then appealed for a penalty after racing into the area, but the referee waved away the appeals.
Ex-Arsenal striker did not have wait long to find his goal, tapping home from a yard out after Uche's effort had hit the post.
Shelbourne were clinging on desperately. Defender Kameron Ledwidge was fortunate to avoid a booking for two robust challenges on Yeremy Pino, before Chris Richards rattled the woodwork with a header from a corner.
The match was as good as over eight minutes from half-time. Yeremy Pino weaved past a series of comically weak challenges before coolly slotting a shot past goalkeeper Wessel Speel to extend the lead to 3-0.
After the break, coach Oliver Glasner took the chance to withdraw key individuals like Kamada and Wharton. Substitute Romain Esse came close to scoring with his very first touch, but saw his effort blocked.
Esse was desperately unlucky later on, seeing one shot crash off both posts before being gathered on the line. Uche then missed a sitter of a chance, showing there is still scope for improvement in his game.
A solitary worry for Palace was a late knock to Justin Devenny, who was forced off. This allowed 17-year-old forward Benji Casey to earn his senior debut, capping an otherwise perfect evening for the visiting side.
Elena is a tech enthusiast and freelance writer specializing in gadget reviews and digital trends.