Here are some ideas for you, as I have been through this myself over the past year.
If you wish for more detailed explanation just ask.
1: Cloud storage ICloud you can have a good interface see RAW, PSD images etc.
2: Video uploading to cloud are super slow once you go into Gigs.
3: I use LumaFusion archive function save to my cloud home drive, see image it is the white drive on the right of the image, other drives plug into this.
4: Down sides are WD app you cannot see some files like RAW, upload a gig of video = 6 mins.
5: WD app has an excellent download manager, you select down load then you are free to use other apps, it downloads in the back ground.
6: Androu has the gnarbox and WD wireless drives and it would appear you can transfer files faster than a speeding bullet, if so your problems have been resolved
Their is a page on the site talking about this currently now.