Probably too early to tell. The torque curve is far more important than HP rating in real driving conditions.
https://www.xoto.be/aanbod/detail/lotus-emira-20-turbo-aut-first-edition thats my car i sold 3 weeks ago for 75000 euro because i bought a brand new 296 gts . the lotus i payed 105000 euro (with spoiler) 10 months ago . yep i lost a lot of money it is in belgium , sorry for my bad english
If you have any brains the correct pathway to a fast Emira is to just get a used one and put a smaller supercharger pulley and injectors and tune the ECU. I don't know what the exhaust manifolds look like. The car is a tough sell with the Cayman and Corvette available. I have an Exige S and while the Emira is a gorgeous car, it is also a big car.