I agree with @ghdprentice - at a minimum your speakers seem too close to each other, assuming your system pic is current.
I’m curious what motivated you to spend something like 3 times the cost of your speakers on cables (assuming I’ve got the cost/math in the ballpark), rather than invest in maybe end-game speakers first?
For the record I’m not a cable denier, and I hope you are really happy with your purchase.