I am aiming to use membestack as a way to have a user to fill out a form that they can save for later and come back. I am on number 40 of my custom fields and the site is so slow is there a work around this? 
Hey Rob, depending on the platform you're using, you may want to consider saving these fields in the platform's CMS and not on Memberstack. I have a form where I have a ton of fields (in webflow), and I'm just using memberstack as the gate to get to the form. I've attached a screenshot of the form so you can see how robust it is. No lag here.