I just converted an inline-rendering example to using partials:

collection @elements
attribute :id, :subject, :description, :project_id, :parent_id

node ...
node ...
....

where the code was inlined into the collection-view, to using partials:

collection @elements
extends "element/element"

which yields the exact same output, but the performance drops drastically with huge collections:

from

Completed 200 OK in 680ms (Views: 318.7ms | ActiveRecord: 22.9ms)

for the inline-view

to

Completed 200 OK in 2267ms (Views: 1919.2ms | ActiveRecord: 22.6ms)

for the views using extends.

Anything I can do about it?! Anything I need to cache here? Are the partials re-read for every item in the collection??