I agree it sounds like a boot issue, but I do believe new boots require a break in period. If you go for a performance fit, they will feel very tight, and you could have initial numbness. If you do enough tweaks so they are fully comfortable before you ever ski them, you may have over-corrected and by the time they pack they may be too loose.
I resisted a performance fit boot for years as I wanted the comfy from day one experience; I had never struggled to get my boots on/off, nor had that "can't wait to get them off" feeling I heard so many lament about. They fit perfectly right out of the box! I was slightly smug about the comfort of my boots, and curious why people would put themselves in anything that made them struggle so. Over the seasons I was using my buckles more and more to both hold my foot in place and to increase the flex....hmmm, perhaps immediate comfort has drawbacks?
Last season I took the plunge and went to a performance fit boot. The fitter put me in the same boot model, but higher flex and one size down. The first few days were actually quite miserable as the numbness was significant when skiing. I popped back to the shop several times over those days, and with a bump for my big toe and some board grinding, along with the packing, they settled in. I now understand the struggle to get them on and off, and while I look forward to taking them off, luckily that is not due to active discomfort.
For me, boots will continue to come along with a set of trade-offs. For now I am enjoying the control of a performance fit, but I do miss the ease of my old ones and being a BSL buddy with my daughter!