This is the problem. Voters shouldn't be expected to work on 20+ decisions simultaneously during the campaign season. Canada certainly doesn't do this and I'm not aware of any countries aside from the US that do.
It's a big reason I vote from home. Properly researching every candidate on a ballot can legitimately be a full day's work. Spreading that out to a week of iteration helps a lot.
I should not have to vote on judges and dog catchers and stuff. I like officials being accountable, but voting for an unopposed “nonpartisan” candidate has negative value - it wastes time and resources and lends legitimacy to an essentially non democratic process with uninformed voting. Better to have an easy recall mechanism.
At the very least, put the federal stuff on a federal ballot, the state stuff on a state ballot, and the local stuff on a local ballot, and have them 4 months apart. Then we can get back to hand counting and election night results.