Powerful, smallish floorstanders with high WAF?

Just curious how op knows it's the speakers that are underperforming?   What amp is used?   Maybe amp cannot drive the Focals to their max.  I heard them once off a krell integrated and they did not strike me as wimpy.   Not sure  what of similar size would necessarily be better in that regard.    Something bigger may be needed.  How about adding powered subs?   That would take things up a level or two. 

I do not know what you mean by "powerful", but I really enjoy my Larsen 8 speakers.  I had borrowed a pair from my local dealer and my wife actually liked the way they looked!  She says that they remind her of plant stands.

http://www.theabsolutesound.com/articles/larsen-model-8-loudspeaker/

Platinum Audio Solo's....except for some 'stats I owned, these are the most coherent, musical, smallish yet powerful speakers I've owned in my 40 years as a 'phile....and speakers my wife doesn't want me to move on from. 

You'll get lots of suggestions here, probably all good. Without color or price to go on, I recommend you take a look at stand-mounted Sonus Faber speakers. Several of their models are gorgeous (IMO), but the one thing owners mention in their ads is the high WAF. Don't be afraid to consider the older models as well. No, I'm not selling mine!

@bodotes mentioned Larsen 8. Note that Larsens are one of the few speakers designed to go against the wall rather than pulled out into the room. Depending on your situation, that could really help with your room aesthetics.

As you go up in capability and power, it's hard to keep the speaker footprint small. I have the active version of the ADAM Audio Classic Column Mk3. It's relatively slim (9" x 12" footprint) and doesn't call much attention to itself, but can fill a whole house with the presence of live music, and the bass is strong down to 30Hz. There's a bass shelving control if you want to move them closer to the walls.