Other western democracies are much smaller or have much more uniform systems than the US as well. Not to say it's impossible, but it would take reworking the system. Right now the only elections that are highly publicized and known about are the ones every 4 years for president. Next is every two years election for congress and that's a big drop off in participation. Things like primaries you really have to go out of your way to know about them happening and when and where.

The first couple states really end up determining who usually wins the nomination and financial backing. It takes time to move a candidate between places and set up multiple events and fundraisers. Now in state and city elections the US can do those quickly as well. Smaller area to cover and campaign and the community stays informed. It doesn't help that national elections involve institutions like the electoral college instead of a popular vote. That's a different problem though.

Or less, in Denmark the average time from election announcement to voting is 20 days.