One other aspect of the more recent Onedrive upgrades (basically since Files on Demand was introduced in the build) is extremely high CPU usage when scrolling through a folder in explorer with lots of thumbnails.
Granted I only have a dual-core Pentium AE (@ 4.2ghz), however with the Onedrive client closed I get Explorer.exe CPU spikes to 35% when navigating a thumbnail-heavy folder on my local Onedrive storage, and scrolling with the mousewheel remains responsive. With the Onedrive client loaded however, scrolling through the same folder produces Explorer.exe spikes (well more like constant) CPU usage of upwards of 70%, and scrolling is extremely jerky and unresponsive. This wasn't the case before the Files on Demand (or new file type previews).
I've submitted feedback on this today in the Feedback hub. Is this a known issue?