Is the Domane (Frame) a fast Bike?

Hey!

At the moment i have a Cube Litening Air and a Trek Domane Sl6 with 36mm gravel tires and a Trek Checkpoint for commuting.

Now i thought about to sell the Domane and buy an Aero Bike, but do you think it is worth?

Or ist the Domane still a fast Bike and the better/cheaper solution are Aero Rims? (I could get Newman Advanced A.50 for small mone)

I don’t know how much are the Aero Gains of a Frame but i still like the optics from the Domane. Here a pic with the 50mm Rims and the actual setting with Campagnolo Levante and 36mm Gravel tires.