You’re screwed, big throw rug with padding beneath, heavy drapes you can close when listening, subs to compliment the speakers might have you playing back at lower volume which can tame the reflections.
Speakers or room
I have a very lively room. Tile floors, large window and open area. If you clap there is a loud echo. Furniture is limited. I set up Kef LS50w and the sound is recessed not forward. The room is 26 x13 and even up close it doesn't sound good. Is it the room? What should I do ? Wife acceptance factor comes into play.