I have imported an nzb file which have 870 'subitem' on it, after being imported, when expanding and scrolling the item, newsbin will consuming more than 25% cpu power and also scrolling become toooo laggy and lot's of "Display update pending".
I will p.m to dexter the mentioned problematic nzb file.
Newsbin x64 6.72 on Windows 10 x64 Enterprise Anniversary Update.