sounstage too big bad thing

I agree with Sounds_real_audio and Sns. Distance between speakers and toe-in worked for me. I had a similar issue after upgrading my preamp. In a small room, my chair was against the wall (couldn't be moved further away). Moving the speakers farther from the chair (closer to the front wall) would reduce the wonderful SS depth I had and just couldn't part with.

I experimented by moving the speakers further apart until the SS width cleared up the "congestion" that the enlarged SS created. It still lacked focus. Changing the toe-in gave me the focus. Speaker separation and toe-in interact with my room, so I had to go back and forth several times.

Once compensated for, the increased SS was much better than what I had before. More detail and life-size images.

Relax, have a homebrew and listen to some Marshall Tucker Band...

If the instruments sound like they are over your head perhaps your speakers are tilted back. Do your speakers have adjustable spikes? What are your speakers by the way? Try a higher chair. All of the above. ...

You're getting good advice.

Playing with speaker orientation/location to lock in the new soundstage the way you want is definitely the first thing to experiment with before changing anything else.

I used different thickness shims 1/16, 1/8, 1/4, 1/2 MDF to change heights so I didn't have to adjust spikes with each change, and for quick check I stand and change the height of my ears to find the height that seems best.

In my experience your cables need to burn-in. A larger soundstage is a good thing but new cables will go in and out of focus as you cycle your system. New cables can take one to two hundred hours to equalise. After the cables come up,like others have said adjust your speaker placement.