By removing the app, you’ll immediately revert your site to the slower speed it was at previously and you will no longer get the benefit of faster page-load speeds, better rankings and cheaper clicks.
You can remove the app by deleting it from your apps within your store. Once you’ve done this, you’ll also need to manually move your liquid files back to their original location so that you can continue to edit your theme’s config and see the changes on your live site.
Deleting app