Improving my Bluesound Node 2i

I’ve had the Node 2i for about 6 years now.  About four years ago, I upgraded my DAC from a Cambridge Audio DacMagic 200M to an Audiogd NFS-1C.  It’s a simple well built unit with just high or low gain settings.  I have some kind of Kimber  Cable co-ax running between them.  I use it to stream Spotify Premium.  I know, it’s not Roon or Qobuz, but it’s always sounded good to my ears and I’ve made many playlists on it, and I’m not changing.  
 

Lately, I’ve noticed much less gain and clarity from this combination and wondered if there’s maybe a setting that’s off? I’ve also noticed that my Bluos app wasn’t the latest, so I’m upgrading the app as I write this.  Oh, and I also live in Israel so wondering if the Iron Dome, David’s Sling, David’s Arrow and other advanced missile interception technologies could somehow mess up the signal?  Pretty sure I live near where the batteries where they set off Iron Dome and David’s Sling..

Any thoughts or suggestions on this?   
 

The rest of the system is:

Onix OA-30 integrated, Audiolab 6000CDT, Nakamichi DR2, Lenco B55, Schiit Mani, Kef K140, Nordost Silver IC, Straightwire Silver ICs, Monster IL Reference 

Thank you for your constructive thoughts and suggestions.  Please no political, religious, or war commentary.  I didn’t ask, nor do I really care about your thoughts on those subjects.
 

(Hate having to include the last 2 sentences, but civil conversation and discourse seems to have left the room several years ago).  So, let’s stick to what we all love and cherish - the music and our audio systems. 🙂