Umbraco version 12.3.6 We have set two languages in our solution. We have product content that has 3 richtexteditor, two mediagallery, block list (100+ variant content), 8 multinode tree picker, custom labels for block list. The content is taking more than 20 second to load for ENGLISH culture (not the default language) and it takes 2 to 3 seconds for the default language. The blocklist, mediagallery are NOT VARIED by culrure. Only few fields are shared. Sometimes the page crashes giving out of memory, and sometimes popup message to Wait or close the page. Why is the backoffice slow for non-default language. Kindly come up with suggestions and solutions to speed up the backoffice performance.

Well know issue, it is hopefully going better in 13.2: https://github.com/umbraco/Umbraco-CMS/issues/14936 I spend quite a time debugging this hell 🙂

Thanks for your quick response @bielu . In my case, the performance is poor for the non-default language. It is better for the default language. https://localhost:44311/umbraco#/content/content/edit/135453?mculture=nb takes 2 seconds to load https://localhost:44311/umbraco#/content/content/edit/135453?mculture=nb&cculture=en takes 20+ seconds. We have added ContentPublishedNotification, ContentMovedToRecycleBinNotification, SendingContentNotification, IUmbracoTreeSearcherFields on the product documentType.

@Ramya Devendiran I am 99% sure it is cause by issue above. Notification handlers and searchable trees are not affecting loading of backoffice 🙂

Thanks again. Hope I get approval to upgrade from 12 to 13 from my client. I shall wait for the 13.2 release

I would say yes, but going to test rc in our env soon