Yes the carbon rims will be a lot of it, lower moment of inertia: basic physics. It's not just accelerating the mass, it's spinning it as well. I don't know about the geometry but I do know Orbea made some changes to the frame (deleted the mudguard lugs for one thing!) Mine's the 2022 model. I've not ridden other road bikes but even with motor off it's certainly got more get up and go than my manual Giant hybrid.
I nearly had a Ribble. I had my cycle to work voucher approved for Ribble and a CGR AL-e configured ready to go in October last year. At the time I put the voucher application in the c2w system, Ribble said my build was expected February. When I was ready to pull the trigger it was saying July! Then I googled Ribble lead times!
And I was told by my company I would start paying the monthlies on day 1 and not when I got the bike.
So I canned it and started googling. Found the Gain was in stock at a bike shop 20 miles away. It turned out they didn't have the D40 in XL but Orbea still had two 2022 model XL frames in the factory in Spain (2023 model was due out). I visited the shop, paid a deposit and the shop ordered one of those. In the meantime the voucher came through. Frame shipped from Spain, bike built by shop, and I was riding it 10 days after the order was placed. Kudos to Orbea and Chevin Cycles (Harrogate), hard luck Ribble!