I would suggest setting your account to filter by “new” content. “Scale” is also useful. IIRC: It filters like “new” but uses an algorithm to show content from more of the subbed communities, instead of only showing content most recently posted, from your subs.
Be default the sorting of your front page is likely set to “Active”, try different sorting options to see if that changes things.
I manually set it to New, but your point still stands. I’ll try some other settings too.
I would suggest setting your account to filter by “new” content. “Scale” is also useful. IIRC: It filters like “new” but uses an algorithm to show content from more of the subbed communities, instead of only showing content most recently posted, from your subs.