I’m a little late to the post, but I had a similar issue reference a table before. I just had some throw pillows I placed near first reflections on the table when doing more serious listening. It worked pretty good IMO.
Thanks for the suggestion. @tweak1. Like I said in my last post, my options are limited, and I realize that. I'm constantly try to balance aesthetic vs SQ. Something has to be compromised.
To determine whether or how much the glass coffee table might be interfering, put/move your hand on it while playing music. You could also place a bowl of water on it and look for rippling. If it ripples, try something inexpensive like a few rubber/silicone place mats
Thank you guys for your comments! @zufan, I know the glass coffee table is not ideal. I live in an apartment and I simply don't have space for a dedicated music/movie room. So my whole system is part of my living room space.