I make my own speaker cables
Oh dear. Sorry to be the one to red pill you, but there are no good DIY cables. Period. Whatever you spend on material will always buy you way better performance in a professionally designed product. Always. No exceptions. Not even close.
What you have right now might as well be lamp cord. No offense. It just is. Never heard any exceptions to this. A long time DIY'er one time compared his all-time best in my system. Even he had to admit it was handily trounced by some random thing I pulled out of my old cables drawer. About $75 from Synergistic, something like that.
You've got good components. Before doing anything else, get some good wire.