I am wondering if different plans effect speed of bubble editor? Also wondering if there is way to delete multiple pages
The speed of your bubble editor varies based on how many elements you have on the page. If you have a one-page app with a lot of components, it may feel extra slow to edit. If you have multiple pages, it can speed up your editor.
As far as deleting more than one page at a time, that is not possible currently. This is just for safety, because I believe once you delete a page, it is gone forever. So, for that reason, it could be dangerous to allow the opportunity to delete more than one at a time. That is why once you hit delete, you have to confirm.