My paid feature tiers really targeted commercial and heavy traffic users and I simply never had any of them sign up because the actual platform functionality targeted individual free users.
There are some hard to answer questions around the type of users that need dynamic pagebuilders, and you need your paid tier to target the specific pain points of people who would pay, not just arbitrary limits on free feature usage. I built the platform for free users so that's all I ever attracted.
If I did it again, I would focus on things businesses need like product widgets, contact forms, store maps, opening hours, social integration and so on.