I've got 15 or so mostly static page WordPress sites that I just downgraded from VPS to shared hosting. I noticed no decrease in speed. And am happy not to have to manage the occasional VPS issues associated with the site file VPS server.
As it happens, I did not specifically request downgrading the database VPS hosting so now have shared file hosting with VPS database hosting.
I'm wondering if I should keep the VPS hosting for the database. Would it be likely to help with speed or not make any difference?
I do have one eCommerce site, might that alone make it worth sticking with the database VPS hosting at $15/month?