Lowering the price will naturally increase a bit the number of people that might consider getting access. Although, you should set the Tiers according to how much they potentially give and how much work/time/effort you have to spend to fulfill the promised rewards.
If you are writing a lot of shorter chapters with quite fast releases, then lower prices of Tiers is a decent strategy.
I'll use myself as an example here, but have in mind I do weekly releases, so change things accordingly. On my Patreon I offer 3 Tiers that focus on advanced chapters - 1$ for 1, 5$ for 4 and 10$ for all. There are further ones, but for extra things. At first, my Tiers gave 1 and 3 chapters but were still priced the same. Since the beginning, I plan to reach 2 and 5 chapters per pledge respectively at some point. Changing the pledge description is better than changing the pledge price mid-writing. As I slowly gather more advanced chapters I'll at some point reach the threshold I planned.
As for someone who would post more often, Tiers like 1-3-5$ would fit decently, and the number of chapters given should be calculated by yourself, having in mind how many are you able to comfortably write. I usually finish 2-3 chapters a week if I have enough spare time, but 1-2 with the usual amount of time. Thus I started with lower numbers of chapters per pledge until I reach a healthy amount of advanced ones, in case I slow down my writing due to some circumstances, like starting another Uni term in 2 months.
Also, going down instead of up with prices works much better. Even if you overshoot you can easily back down without hurting your present patrons. Going up might naturally cause some distress. But it's of course not something that shouldn't be considered. Just never forget speaking to them first.
I've seen a lot of authors who post frequently, daily or every other, with Tiers like 1$ for a few and 3-5$ for whole access. And this will naturally work with the amount of content they are putting out. Faster chapters, more exposition, more potential supporters, so the price can be lower. I'll leave the link to mine
here, just in case u want to take a peek. Plz no hate, dis no self promotion.