I have a 6Dmark2...pretty state of the art, but terrible software!!! It has to setup a private wifi network to see photos on my tablet....and even then, I can't do much with them if they're in RAW. Also, why does running GPS make the battery run out 10x faster? It's so bad I can't use it for more than an hour or 2 without switching batteries (and I have new ones). Cloud upload and GPS are things we just take for granted with our phones.
I had that problem on my Canon 6D m1 and how I got it better was to change the setting in GPS. Change "Position update Timing" I changed it to every 2 mins from like 30 seconds. Your GPS wont be as accurate but is shouldn't be a problem if you are walking around. I use GPS to get an idea where I took picture not the excellent location.