I’m no expert but if your regular kettle is showing signs of scale then your machine will definitely be scaling if you’re using the same water. I’d be moving to bottled water immediately.
How long have you had the machine and was it new, if just new then probably doesn’t require a descale, but even a few months can scale it.
Can you try upping the steam temp to 125 and see how you get on ?
I sometimes get wet pucks, I must pay attention to when I get them and the dose .