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Short Layover in Shannon vs Dublin

Hello, everyone. I'm considering booking a trip from BOS to Paris (CDG) in May on Aer Lingus, which includes a short layover in Ireland. For the same price, I can choose a flight with a 1 hour, 40 minute connection in either Shannon or Dublin. I know that this is typically a short layover for an international flight, and I was wondering which airport is faster to get through? It's a single ticket and I believe our bags will be checked through to Paris, so we probably won't have to go through Customs, but I want to make sure we have enough time to get to our departure gate and go through any necessary security.

Thank you!