Seriously, start over with your room and your setup. Like many on this thread I’m sure, I hopped on to see if you had your system online and you do. Thanks, that helps those who want to be of help. The presence of photos also helps....and informs, so thanks for that as well.
That’s why I suggested that you work on setup and acoustical treatment. I was trying to be kind but the way you have your system setup in the small alcove just amplifies your potential for trouble preventing your system from performing to an appropriate standard for your enjoyment. Additionally, and I can’t speak for everyone...Maggies in your room as pictured may not be ideal. The challenge is you wont know until you begin the proper setup process. Sometimes the room dictates the compromise and sometimes the ideal optical system placement is at odds with the ideal acoustical setup for best sound.
Please take the wise advice offered by @tvad because you have some great gear. In fact, I would take almost any wager that in a few hours some of us could rearrange your setup, apply a few tasteful acoustical treatments and you wouldn’t believe how great your gear and room would sound. The only thing I know for certain is that it isnt your gear holding back what is possible, its your room and setup. If you absolutely have to have it set up in exactly the current configuration, Maggies may not be choice A for you. Since none of us know your room, all advice (including this post) is purely guesswork.
In summary, you presently have a fine system that is handcuffed by the way you have it set up and the absence of appropriate room treatments. Good luck!