iCloud photo library constant CPU use

I have the 7.13 version of iCloud for Windows installed on my Windows 10 PC. I've just noticed that even though no photo's are being synced and there is zero file activity (as checked in task manager and performance manager), the iCloud Photo Library (32 bit) application (iCloudPhotos.exe) is constantly taking on average 15% of my CPU. Does anyone know how to fix this? I'd love to know what its actually doing but from what I can see, its doing nothing at all (no disk or network activity), so why is it hogging 15% of my CPU all the time its running?

Not sure if its related, but I have noticed I am unable to change the default folder because the app thinks its doing something when in reality there is nothing happening :-