Hi there, thanks for creating this plugin!
We use it for a lot of our projects.

For one of our projects however we are running into a performance issue.
This is because every time an ACF GravityForms field is rendered, it's actually getting all forms from the database.
And this specific website has approximately 300+ forms.

When we have a few occurencies of this ACF GF field on the edit page, it becomes really slow.
In this website, it's doing a lot of GFForms::get_form() queries because of this, resulting in 2901 database queries to get a form. In total, this could cause an extra page load time of up to 10 seconds.
Also see screenshot below of the Query Monitor tool.
There you can see that 7 times a single form is loaded from the database, it is caused by the field render of the ACF gravityforms plugin (which corresponds to the 7 ACF gravityforms fields on the edit-page screen).

We can easily change the behavior of the render_field function in this plugin, to only load all the forms once.

I will attempt to create a PR for you today with this fix.
Hoping you'll be able to take a look if you agree with the fix.
Thanks in advance!