I have a Miele washer/heat pump dryer combo. From my experience, the dryer is about the same as what I’m used to from a conventional dryer (~45 minutes), but the washer takes a lot longer. As I understand it, the washer does a more thorough spin cycle so the dryer has to do less work.
There’s nothing wrong with a monolith. Microservices are not inherently more scalable. Their advantage is around scaling teams. If anything, a monolith can be more performant as in-process calls are much faster thent network calls.