I am not sure what your current speakers are.
I wonder if you have subwoofers in your system. If not, I added a pair of REL SHO subwoofers and it was a game changer. Their high level connection allows them to play more like woofers to fill in the bottom end without sounding boomy.
I too feel the Focal’s sound a bit bright. I would imagine the concrete floor could make things sound brighter.
there are so many in this group who are so knowledgeable and it will be interesting what they come up with.