"a couple of days" doesn't sound good. Confirmations all super slow now?
They have to mine some blocks just to stop the difficulty crashing down the reason it crashed so fast last time was long periods with no blocks and coming back to late
Yes, it really hard to calibrate this when their EDA retarget works more like an old TV channel changing dial rather than the volume dial. As a child, I always ended up breaking the channel dial.

Well, that brings me back... To a time before I was born. Guess crypto is for all ages